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Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by sandworm101 on Tuesday October 10, 2023 @02:00PM (#37835320)
My understanding is that such parts are not by themselves illegal. The crime is actually using them on the road. My understanding was that they were legal for track purposes.

I would never want to say that people should be able to defeat emissions, but a part of me does not like the idea that every vehicle owner is beholden to the OEM for parts in perpetuity. The "right to repair" people should be all over this fight. Restrict cars to only their original emissions parts and that becomes yet another lever for manufacturers to pull when they want to sell new cars/trucks/tractors. I say let people use the parts they want to use, then properly inspect and test the resulting vehicles once they are on the road.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by throwaway11004 on Tuesday October 10, 2023 @02:02PM (#37835345)
The right to repair people are leftists (this is not a value statement about the merit of their ideas). They generally want more governmental regulation, such as the right to repair itself.

Usually their reason for that is to limit e-waste and unnecessary emissions. Thus I find it unlikely they wouldn't want this banned and fined.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by ska on Tuesday October 10, 2023 @02:08PM (#37835418)
> The right to repair people are leftists

I think this is an oversimplification at best. Right-to-repair has huge support amongst e.g. farmers, who are not homogeneously left-leaning by any stretch.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by throwaway11004 on Tuesday October 10, 2023 @02:16PM (#37835510)
If a farmer supports right to repair - a pretty significant regulation of business - they must be at least left leaning.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by eli on Tuesday October 10, 2023 @02:18PM (#37835537)
What a bizarre argument. I don't think "business regulation" is the only or even the primary dimension of the left vs right axis.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by ska on Tuesday October 10, 2023 @02:44PM (#37835850)
That's an idiosyncratic usage of left/right leaning.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by rootusrootus on Tuesday October 10, 2023 @02:56PM (#37835993)
The right is not significantly more opposed to regulation of business than the left, except in some shallow rhetoric. They just want the regulations to align with their own world view.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by strbean on Tuesday October 10, 2023 @02:04PM (#37835379)
I don't know about the political leanings of right to repair supporters on average, but there are prominent supports who I certainly wouldn't characterize as leftist. See Louis Rossman for example.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by throwaway11004 on Tuesday October 10, 2023 @02:19PM (#37835546)
From the Wikipedia page on Louis Rossman:

"He was initially completely against any restrictions by companies on farmers from repairing their equipment (which might have resulted in voiding the equipment's warranty). However, Rossmann later admitted that his opinions were not completely correct due to a lack of expertise in farming machinery; this came after he received mail from a John Deere employee stating how allowing farmers to tune their tractors can result in harm to themselves and possible violation of environmental laws.[14] "

This seems to confirm my point...

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by strbean on Tuesday October 10, 2023 @03:02PM (#37836064)
That's an atrocious Wikipedia article. They don't even pull a quote, they just reference a 30 minute YouTube video directly?

From what I can tell, the only relevant bit in that video is that he concedes he didn't know that tractor racing (tractor pulls) was a thing.

And thinking any environmental regulations should exist certainly doesn't place you on the left. Do you think Richard Nixon was a leftist?

Rossman spends about the same amount of time railing against regulation as he does supporting right to repair.

Right to repair is largely about protecting individual liberties and property rights.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by titaniumtown on Tuesday October 10, 2023 @03:04PM (#37836091)
I don't think that confirms any "points" you've made at all.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by petsfed on Tuesday October 10, 2023 @02:30PM (#37835676)
I think a lot of folks use "leftist" in modern usage to mean "those who are further left than liberals". And that's where you're getting a lot of pushback. In terms of governmental regulation "you cannot use the judicial system to compel people to use your preferred avenue of repair" is pretty weak. I think there's a path to saying "there's no legal concept of 'felony contempt of business model'" is anti governmental regulation.

What I'm saying is that by casting right-to-repair as leftist (or rightist) just muddies the waters of what leftism is without providing any guiding context about why people might be for or against the right to repair. In any case, there's very few parts of the governmental-regulation spectrum that are unambiguously left or right.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by Dracophoenix on Tuesday October 10, 2023 @03:26PM (#37836340)
> there's no legal concept of 'felony contempt of business model'.

It's a bad legal concept, but it exists: The DMCA

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by petsfed on Tuesday October 10, 2023 @04:18PM (#37836916)
I mean to say that the statement is anti-governmental-regulation in its expression.

Clearly, there is a legal concept of 'felony contempt of business model', as I did not coin that phrase myself.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by Dracophoenix on Tuesday October 10, 2023 @07:36PM (#37839151)
Context missed. My apologies.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by LargeWu on Tuesday October 10, 2023 @02:04PM (#37835377)
It's must be some interesting mental gymnastics to equate "protecting consumer rights" to "state control".
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by throwaway11004 on Tuesday October 10, 2023 @02:12PM (#37835460)
Who guarantees protection of consumer rights if not the state? Again, I'm not saying it's a bad thing.

People mentioned farmers in your sibling comments, are those consumers? I thought they are not.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by strbean on Tuesday October 10, 2023 @03:03PM (#37836087)
With respect to the farming equipment market, they are the consumers.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by sandworm101 on Tuesday October 10, 2023 @02:17PM (#37835520)
>> more governmental regulation, such as the right to repair itself.

Wanting more personal freedoms is generally considered a right-wing view. Creating a right to repair is about placing limits on corporations, not actual people. Try telling people that they can only use "original" parts in their guns and suddenly the entire NRA will be on the streets demanding a constitutional amendment in support of right-to-repair. This isn't a left-right political thing. It is a persons v. corporations issue, with government as the representative of the people.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by throwaway11004 on Tuesday October 10, 2023 @02:20PM (#37835563)
The right wing view is that "corporations are (made of, owned by) people", that regulation of people (which includes corporations) is wrong and the state/government should be limited.

The gun people in your example decided to use governmental regulation to protect their personal freedoms - which is definitely a leftist stance. Now they are on the right, but what you said moves them to the left.

The reason the gun people support the 4th amendment and still are on the right is because it's not a regulation that affects people, it limits the state.

Again, I'm not saying it's wrong to be a leftist. I support the right to repair too.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by willsmith72 on Tuesday October 10, 2023 @02:57PM (#37835996)
it's pretty classic, people creating new throwaway accounts to spout their garbage because they're too embarrassed to chance it being linked back to them.

what does that say about the quality of what you have to say?

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by rpmisms on Tuesday October 10, 2023 @03:02PM (#37836065)
That's false. I'm extremely (machine guns are a human right, the government got too big in 1777) libertarian-right, and right-to-repair is a sensible regulation that empowers individual agency and adds massive value to the economy.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by Kerrick on Tuesday October 10, 2023 @03:02PM (#37836069)
The right to repair isn't leftist for those who don't believe intellectual property is property. For those people, the laws prohibiting people from cracking lockouts on hardware they own and modifying the code running on their own equipment are the governmental regulation they're fighting against.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by Kerb_ on Tuesday October 10, 2023 @03:04PM (#37836099)
Put this on your main, homie. I dare you.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by valianteffort on Tuesday October 10, 2023 @03:05PM (#37836101)
Not everyone lives in California so while OEM's might produce all cars to meet California standards, it is completely legal in states with more relaxed laws to make such modifications.

At the least I think the government could argue about selling in jurisdictions where it is illegal.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by dieselgate on Tuesday October 10, 2023 @03:16PM (#37836235)
To tap into this thread - this is quite real. One can just remove a catalytic converter (or have it stolen) and they'd then be "defeating emissions" so this lawsuit seems a bit zealous to me.

Recently saw a post on a diesel truck forum about a CA resident who had legal/registration issues because of an engine swap (post emissions engine into a pre-emissions vehicle) [1]

Am under the impression this particular vehicle would be fine in WA state by comparison.

It's frustrating to see consumer vehicles being so strongly targeted by regulatory shenanigans compared to "private jets" and the like

[1] https://www.oilburners.net/threads/california-diesel-convers...

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by imp0cat on Tuesday October 10, 2023 @03:42PM (#37836525)
I think the reason is (any diesel mechanics around please correct me if I'm wrong) that modern engines stripped of their emissions equipment will pollute a lot more than old engines.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by dieselgate on Tuesday October 10, 2023 @03:59PM (#37836710)
I understand the reasoning and am all for mitigating pollution. It may be frustrating for consumers when these systems have potential to decrease economy, performance, and reliability while increasing cost and maintenance.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by ospzfmbbzr on Tuesday October 10, 2023 @06:08PM (#37838307)
In the case of the DEF it absolutely reduces the lifespan of the engine. A truck engine that could last 500K miles lasts 200K max.

Factor a second or third engine (whole new truck) and the energy and pollution to produce it and DEF looks not as great.

Vehicles and engines that last 25 years are easy to build yet they are rare outside of commerical and military.

The whole argument is disengenuous and proceeds from an unstated a priori desire by government to restrict movement of citizens and markets, rather than as a real requirement for a real benefit.

It's all so tiresome...

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by superq on Tuesday October 10, 2023 @07:18PM (#37839014)
That DEF is insanely toxic, too. I rented a diesel truck for moving and everyone got passing-out sick just moving things in and out of the back of it.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by Scoundreller on Wednesday October 11, 2023 @12:09AM (#37840778)
Urea? It's used on foodcrops and you pee out 20-35g/day of it:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9161740/

It has a boiling point of 135C. Something else was (I gotta say it, likely) causing your sickness.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by omginternets on Wednesday October 11, 2023 @12:56AM (#37841030)
There’s a reason you pee it out.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by superq on Friday October 13, 2023 @01:38PM (#37873280)
I am not sure why you so casually dismissed this complaint without doing a quick search.

The whole reason why DEF is used[0] is because it reduces nitrous oxides, which are thought to be a pollutant.

Whether they actually are an effective greenhouse gas or not is probably a completely different thing we could argue about, but what is undisputed is the mechanism of action in the hot catalytic converter during engine operation, since it's the entire point of using the DEF in the first place.

In the catalytic converter, the urea thermally decomposes[0] to form Ammonia and Isocyanic acid[1], which is "a colourless, volatile and poisonous substance, with a boiling point of 23.5 °C".

23.5C is 74.3F. So, basically at room temperature the isocyanic acid becomes vapor. On a hot day, it vaporizes quickly and all that isocyanic acid has to go somewhere.

This is nasty stuff[2].

Anyway, the EPA probably figures that poisoning someone who's operating a diesel serves you right in order to reduce nitrous oxides. I've operated other diesels that are pre-DEF and never got sick like that.

0. https://en.wikipedia.org/wiki/Diesel_exhaust_fluid

1. https://en.wikipedia.org/wiki/Isocyanic_acid

2. https://www.osha.gov/isocyanates

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by orangepurple on Wednesday October 11, 2023 @07:47AM (#37843301)
There is no reason you should be exposed to volatile compounds from a normal parked rental truck. I would have asked for another truck or avoided U-Haul altogether.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by superq on Friday October 13, 2023 @01:22PM (#37873090)
Agreed. It was actually another national moving truck rental brand (not U-haul, I was just using it as a generic descriptor). I don't know why I'm not mentioning it since it seems like there's only a few national brands, but it's not their fault they have to use DEF and the truck was really great otherwise.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by pixl97 on Tuesday October 10, 2023 @07:52PM (#37839271)
Commercial fleet and military engines do not 'last' 25 years. They have a consistent maintenance schedule to fix and replace common wear parts. You have to think of it much more like the Ship of Theseus and not the same vehicle.

My last two vehicles lasted over 250k each, well, one is still going, I just don't own it any more. I feel the engine on the Toyota thats still running may last forever. It's replacing other parts outside the drive train that made it not worth it. Consumers are much more into toss and replace than full rebuild maintenance schedules.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by Scoundreller on Wednesday October 11, 2023 @12:02AM (#37840748)
That dead Corolla will probably get re-built in a developing country (after the cat gets harvested for its minerals of course).
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by Eisenstein on Tuesday October 10, 2023 @09:46PM (#37840032)
> The whole argument is disengenuous and proceeds from an unstated a priori desire by government to restrict movement of citizens and markets

What is their motivation for doing this?

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by imp0cat on Wednesday October 11, 2023 @05:56AM (#37842617)
Oh, absolutely. Emissions equipment in modern diesel engines is extremely complicated and expensive to repair/replace. Multiple cats/particulate filters that can get clogged.

But, at least in Europe, diesel options in passenger cars are mostly gone, most SUVs nowadays are either gas powered (with a particulate filter, of course, so another thing that can go wrong) or some kind of gas/electric hybrid.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by smileysteve on Tuesday October 10, 2023 @06:37PM (#37838615)
Modern (fuel injected with wideband) engines without emissions devices will produce much fewer hydrocarbon emissions but more Nitrous oxides
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by adgjlsfhk1 on Wednesday October 11, 2023 @01:17AM (#37841158)
for the non c02 pollutants it makes a ton of sense to go after consumer vehicles more than private jets. noise, N0x, and other pollutants have significant negative effects for anyone nearby. I care a lot more about the vehicles 20 ft from me than the ones 30k feet above me
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by grecy on Tuesday October 10, 2023 @03:14PM (#37836194)
> My understanding is that such parts are not by themselves illegal. The crime is actually using them on the road. My understanding was that they were legal for track purposes.

That certainly used to be the case, but it changed recently, and the EPA has been aggressively going after anyone who sells them for any purpose.

If you're in the US and sell things that can modify emissions stuff, they're coming for you. Period.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by User23 on Tuesday October 10, 2023 @03:27PM (#37836372)
Does this include chip tunes?
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by LazyMans on Tuesday October 10, 2023 @03:41PM (#37836517)
Yes, a popular diesel tuner was the target a take down and fined big money for providing tunes that make vehicles non-compliant.

Omitting wear and reliability concerns, some tunes gain their effect by not controlling for things like NoX and unburned hydrocarbons.

The worst offenders? "Coal rolling". It would be one thing to do this to help spool a turbo or for some other performance reason, but it's literally running the motor as rich as possible to dump unburned fuel out the tailpipe to make a visual effect. At the expense of everyone around you.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by omginternets on Wednesday October 11, 2023 @12:57AM (#37841042)
There are few things as obnoxious and antisocial as coal rolling (open headers, maybe) and I really wish the EPA would make an example out of them.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by grecy on Tuesday October 10, 2023 @04:27PM (#37837015)
It does, but it's worth noting that a manufacturer of such devices can make it meet federal emissions regulations (if they want to spend the $$$$ on R&D), and they can sell devices that are 100% legal in all 50 states.

Examples are Green Diesel Engineering (Who did a TON of dyno time and used to work for a major OEM on emissions stuff) and Banks (who are virtually an OEM at this point)

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by fsckboy on Tuesday October 10, 2023 @03:15PM (#37836211)
> My understanding is that such parts are not by themselves illegal. The crime is actually using them on the road. My understanding was that they were legal for track purposes.

ok, it's just a single datapoint, but motocross racetracks in New England, already built in the woods away from civilization, started requiring mufflers about 50 years ago, early 1970's

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by oceanplexian on Tuesday October 10, 2023 @03:44PM (#37836552)
We’re not taking about mufflers. For example in California “Emissions defeat system” means you simply used an off-brand air filter that wasn’t blessed by the government.

The parts may even be more efficient and less polluting, the government bureaucracy everyone here is worshipping doesn’t give a rats behind.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by ryandrake on Tuesday October 10, 2023 @03:54PM (#37836654)
Exactly. Years back, I moved to California with an 80's sports car that was admittedly quite hotrodded, but I made very sure that the hotrodding did not worsen its emissions because 1. I wanted to keep driving the car in CA and 2. I don't want to pollute. First SMOG test in CA, the car blew clean as a whistle. It met emissions standards 40 years harsher than it ever had to meet.

Except I had all sorts of aftermarket parts in there from years of repairs, none of them with the all-important California CARB seal of approval on them, so even though it blew clean, it still "failed emissions" and I had to sell it to someone out of state. I'm still bitter about it.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by datavirtue on Tuesday October 10, 2023 @06:48PM (#37838756)
In Ohio in the early 2000s all us kids were removing cats and passing the sniffer test easily. There was a visual test so we would normally just hollow out the existing cats. A lot of times cars with missing cats would pass the visual as well.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by CobaltFire on Tuesday October 10, 2023 @04:29PM (#37837048)
This is disingenuous; you have to do a lot more than change an air filter. You would have to change the actual piping, etc. with one that the seller declined to spend the money on certifying as compliant.

Further, and most people don't know this is a thing, you CAN tune your car as much as you want and have it certified with all of those parts as a one off for about $5,000 and a six-ish month wait. This is how you can legally import overseas vehicles and get a California title and registration, but it's $5,000 per test, and it usually takes more than one if you aren't super prepared. After the certification the entire engine (including all modifications) are regarded as that being the SMOG compliant form.

One other major loophole is kit cars; SB100 allows for non-SMOG vehicles to be built as a kit. Not everyone's cup of tea, but you can build things like the Superlite GT-R [0] or SL-C [1] and never SMOG it.

0: http://www.superlitecars.com/gtr/

1: http://www.superlitecars.com/slc

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by vdqtp3 on Tuesday October 10, 2023 @05:47PM (#37838041)
> you have to do a lot more than change an air filter

You are barely correct. A filter alone is insufficient to be an issue, but a cold air intake will mean you don't pass smog in CA.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by mcronce on Tuesday October 10, 2023 @10:33PM (#37840257)
That would be changing the actual piping, which they mentioned.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by Rebelgecko on Tuesday October 10, 2023 @08:23PM (#37839513)
Which air filter? The engine air filter? I've never had a smog check that involves looking at that one. And AFAICT there's no RFID or anything in it, so it's not something they can check remotely
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by MarCylinder on Tuesday October 10, 2023 @06:31PM (#37838564)
Mufflers do not impact emissions.

In the case of gasoline cars, there are mechanisms for controlling intake air, recirculating exhaust gas, and filtering emissions directly out of the exhaust gases. All of these impact carbon emissions.

These defeat devices allow drivers to modify some or all of these attributes in favor of gaining engine performance.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by datavirtue on Tuesday October 10, 2023 @06:46PM (#37838728)
Muffler delete is a known cause of misfires. It manifests as a popping sound surrounded by the other shitty sounds produced by such a modified exhaust. We have all heard it.

A misfire is raw fuel being expelled.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by sandworm101 on Tuesday October 10, 2023 @08:51PM (#37839692)
In my kneck of the woods we call that backfire. A misfire is when something goes wrong in the cylinder such as the spark failing. Misfire can cause backfire, but not all backfire is traced to misfire. A very rich mixture can backfire without misfire.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by Rumudiez on Tuesday October 10, 2023 @09:42PM (#37840008)
A backfire is when the exhaust goes back out the air intake. An explosion in the exhaust system is called an afterfire, and is far more common. Most people just say backfire for both, unaware of the other term
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by nullc on Tuesday October 10, 2023 @09:01PM (#37839768)
Depends on the rest of the car, a turbocharged engine is going to have plenty of backpressure even with a straight pipe after it.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by mcronce on Tuesday October 10, 2023 @10:30PM (#37840241)
A misfire is a failure to combust the air/fuel charge in the combustion chamber during the expansion stroke, and they aren't typically caused by muffler deletes.

They can lead to the popping sound you're describing, but they don't always, and they're far from the only cause, and muffler deletes aren't necessary for those either. Unburned fuel hitting oxygen in the tip of a hot exhaust and immediately burning is the direct source of the noise, and causes for that are numerous.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by omginternets on Wednesday October 11, 2023 @12:51AM (#37841001)
That’s a backfire, not a misfire.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by datavirtue on Thursday October 12, 2023 @08:20PM (#37864890)
Ok, we have quite a few keyboard mechanics here it seems. The muffler is a source of back pressure. That back pressure is part of the highly optimized emissions systems tuning done by the manufacturer. When you remove that back pressure there is high likelyhood that the reading from the 02 sensor are going to change and cause the computer to alter the air-fuel ratio based on that change. Hence, you will likely lose power, mpg, and introduce the possibility of misfires and other unwanted behavior.

I saw this analyzed on a Chevy Silverado that would randomly misfire. Everything else checked out: fuel pressure, spark plugs, firing timing, and fuel injector pressure. The remaining item: muffler delete.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by omginternets on Friday October 13, 2023 @11:23AM (#37871657)
The part I was objecting to is "A misfire is raw fuel being expelled." That's just plain wrong.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by MarCylinder on Wednesday October 11, 2023 @04:49PM (#37850072)
That's a backfire. You're right in that a muffler can diminish the volume of a backfire, and that it is caused by combustion in the exhaust.

But the incomplete ignition of fuel can occur in both stock and modified vehicles. My car is completely unmodified, but can very easily have a low quiet popping noise during downshifts. With e removal of my muffler, it would be quite loud.

A modified engine can do this to a much greater extent, depending on the modifications. Some do so intentionally with what is known as a "burble tune", which is quite annoying in my opinion. It is inspired by rally cars that would intentionally inject fuel during the exhaust stroke and fire the spark plugs to keep exhaust driven turbines spinning even when under deceleration.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by sidewndr46 on Tuesday October 10, 2023 @03:18PM (#37836254)
This is incorrect. Federal law prohibits the removal of emissions devices on a vehicle, even if not used on public roads.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by TulliusCicero on Tuesday October 10, 2023 @03:31PM (#37836420)
Which makes sense. It's not like pollution stays confined within the track area.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by oceanplexian on Tuesday October 10, 2023 @03:47PM (#37836583)
Pollution only applies to the little people.

If you’re a wealthy politician with a private jet you can pollute as much as 10,000 modified diesel trucks and the EPA might even give you an award or something.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by ceejayoz on Tuesday October 10, 2023 @04:59PM (#37837385)
> pollute as much as 10,000 modified diesel trucks

This is insanely hyperbolic.

A Cessna Citation I carries 564 gallons of fuel, with which it can travel ~1,500 miles - 2.7mpg.

A Ford F-250 carries 48 gallons of fuel, with which it can travel ~700 miles - 14mpg.

It's not even 10x.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by profile53 on Tuesday October 10, 2023 @05:14PM (#37837600)
Yes but an F250 does not use leaded gas like many planes do, has much more complete and efficient combustion, and likely produces far less particulate emissions.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by ceejayoz on Tuesday October 10, 2023 @05:20PM (#37837687)
Private jets don't use leaded gas. https://en.wikipedia.org/wiki/Jet_fuel

No amount of cherry picking is gonna get you to the 10,000x number upthread.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by Blackcatmaxy on Tuesday October 10, 2023 @05:32PM (#37837868)
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by vdqtp3 on Tuesday October 10, 2023 @05:45PM (#37838020)
It's funny watching you all use different words and think they mean the same thing. Turbine powered aircraft, whether jet, fan or prop (a Citation is a turbofan powered aircraft) use Jet-A which is basically diesel (OK, OK, it's kerosene but they aren't that different). Piston planes (of which there are plenty) mostly use 100LL - high octane, leaded gasoline. Now that we're done with the pedantry, please continue with your argument.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by ceejayoz on Tuesday October 10, 2023 @05:59PM (#37838188)
Yes, if you change entire words in my post you can make it say anything you like.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by Blackcatmaxy on Tuesday October 10, 2023 @06:01PM (#37838211)
Parent talked about private planes which you changed to talk about specifically private jets which doesn't disprove "many planes" using leaded gas.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by ceejayoz on Tuesday October 10, 2023 @06:03PM (#37838234)
Direct quote from the parent: “ If you’re a wealthy politician with a private jet”
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by missedthecue on Tuesday October 10, 2023 @07:41PM (#37839192)
Jets don't
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by sam345 on Tuesday October 10, 2023 @05:54PM (#37838131)
Just curious, where in the wikipedia article does it say Private jets don't use leaded gas ?

Just searching the article for "lead" only gets this quote: "The possibility of environmental legislation banning the use of leaded avgas (fuel in spark-ignited internal combustion engine, which usually contains tetraethyllead (TEL), a toxic substance added to prevent engine knocking), and the lack of a replacement fuel with similar performance, has left aircraft designers and pilot's organizations searching for alternative engines for use in small aircraft."

Also a reference to "Planemakers challenged to find unleaded fuel option - The Wichita Eagle" a 2009 article which has a dead link.

Curious to me why you would cite an article that says the opposite of your assertion and then repeat the definitive statement. I must be missing something.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by ska on Tuesday October 10, 2023 @06:38PM (#37838633)
Jets don't use avgas (which is still available with lead), they use jet fuel.

The planes you are thinking of are mostly used for hobby flying or some short haul commercial flights, e.g. float planes. These have piston engines, more like your car ICE.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by ceejayoz on Tuesday October 10, 2023 @06:00PM (#37838199)
Avgas is not used in jets. It’s for the little four seat propeller Cessnas you see tooling around.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by paulddraper on Tuesday October 10, 2023 @06:47PM (#37838743)
> No amount of cherry picking is gonna get you to the 10,000x number

I cherry-pick "5 miles in a F-150" vs "5000 miles in a Citation."

Cherry-pick complete.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by fallingknife on Tuesday October 10, 2023 @07:17PM (#37839006)
And I nit pick your cherry pick on the grounds that 1000x miles * 5.2x efficiency ratio only gets you to 5200x, far short of 10K
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by jojobas on Tuesday October 10, 2023 @07:41PM (#37839193)
Planes emit their crap at a higher altitude which somehow makes a greater impact or so I hear.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by paulddraper on Tuesday October 10, 2023 @07:21PM (#37839044)
An F-150 has better gas mileage than a F-250.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by chrisBob on Tuesday October 10, 2023 @05:16PM (#37837631)
Maybe in terms of CO2, but turbines also don't burn as completely as most piston engine cars. 10k is probably an exaggeration , but the pollution is much worse than the fuel economy indicates.

Similarly, my chain saw probably pollutes nearly as much as my new Honda truck even though it only gets a few gallons of gas per year.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by SAI_Peregrinus on Tuesday October 10, 2023 @06:12PM (#37838358)
A Gulfstream G700 carries 22,407kg of fuel (about 6,100 gallons at 800kg/m^3 ) and a max range of 14,353km (8,918.5mi), for 1.45mpg. Closer to 10x, by a bit. Using the 12,316km high-speed cruise range manages to bring it down to 1.24mpg, just under 10x worse.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by ceejayoz on Wednesday October 11, 2023 @07:24AM (#37843133)
Said Gulfstream carries 18 people, though. Whether 5x or 10x, it isn’t 10,000x.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by SAI_Peregrinus on Wednesday October 11, 2023 @03:41PM (#37849288)
Yep! My point was to take one of the biggest private jets, and show it's still vastly less than 1000x. Private jets are bad, but they're not that bad.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by babypuncher on Tuesday October 10, 2023 @06:24PM (#37838501)
But nobody drives their Ford F-250 10,000 miles a week. It's not about the energy efficiency of someone's mode of transport, it's about the total emissions from their transit habits. You know, the actually important metric when measuring an individual's impact on the climate.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by westmeal on Tuesday October 10, 2023 @06:39PM (#37838648)
They're not in a fuckin Cessna.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by vwcx on Tuesday October 10, 2023 @06:43PM (#37838696)
Of course they are.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by paulddraper on Tuesday October 10, 2023 @06:48PM (#37838750)
A Cessna Citation, not a Cessna 172.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by ceejayoz on Wednesday October 11, 2023 @07:12AM (#37843060)
https://en.wikipedia.org/wiki/Cessna_Citation_family

> In the fifty years following the 1969 first flight, more than 7,500 [Cessna] Citations were delivered, forming the largest business jet fleet.

The math is similar for a Gulfstream, if you prefer.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by datavirtue on Tuesday October 10, 2023 @06:41PM (#37838672)
Leer jets, they so thirsty.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by paulddraper on Tuesday October 10, 2023 @06:45PM (#37838724)
Per mile

What if the little person and the wealthy person travel a different # of miles?

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by tmtvl on Tuesday October 10, 2023 @07:38PM (#37839170)
Then the person who travels more miles is better off doing it with a private jet rather than a truck?
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by kortilla on Tuesday October 10, 2023 @07:08PM (#37838931)
Good thing Cessna citations are only used to travel as far as an F-250 travels /s
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by protonbob on Tuesday October 10, 2023 @07:19PM (#37839021)
It’s not just about mpg. It’s about pollutants emitted.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by ceejayoz on Tuesday October 10, 2023 @09:00PM (#37839755)
Which pollutant does a private jet emit 10,000 times as much as a diesel truck?
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by rgmerk on Tuesday October 10, 2023 @08:30PM (#37839558)
And furthermore, it matters where non-CO2 pollution is released. Particulates released from a jet at cruising altitude, particularly over an ocean, are less harmful to human health than a truck belching pollution next to a kindergarten.\

I'd also add that two wrongs don't make a right, and while not strict enough there are emissions regulations for aviation.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by pixl97 on Tuesday October 10, 2023 @07:45PM (#37839224)
Eh, you'll look for anything to complain about.

If you were one of those rich people you'd be complaining about the certification of airplane parts causing them to be so expensive.

And if you're in the US, it's likely you could take dozens of flights per year if you wanted to, if you fit in the techy HN pay grades.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by TulliusCicero on Tuesday October 10, 2023 @08:42PM (#37839640)
I think you're probably rather exaggerating the difference here, but nonetheless, sure, let's regulate or the tax the shit out of private jets too, I'm okay with that.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by queuebert on Tuesday October 10, 2023 @04:21PM (#37836952)
Dedicated race cars don't have emissions controls, though. For some reason, only race cars that drive on both roads and tracks are regulated.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by SoftTalker on Tuesday October 10, 2023 @05:32PM (#37837873)
Dedicated race cars are too few in number to really make a difference, so they don't worry about them.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by TulliusCicero on Tuesday October 10, 2023 @08:40PM (#37839627)
Maybe that might be worth regulating, but there aren't many actual race cars around.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by sidewndr46 on Wednesday October 11, 2023 @06:22AM (#37842767)
This too is incorrect. If a vehicle is made with for street purposes, it can never have its emission devices removed. Even if it used as a dedicated race car
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by queuebert on Wednesday October 11, 2023 @10:00AM (#37844513)
As you probably know, I was referring to custom built race cars, such as Indy or Nascar. But yes there is a very tiny set of cars that were once street cars that have been modified and now only race and never, ever, even for a minute, drive on the roads.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by enragedcacti on Tuesday October 10, 2023 @04:13PM (#37836866)
My understanding is that such parts are not by themselves illegal.

The relevant text regulating the sale and manufacture merely allows the EPA to exempt products "that you intend to be used solely for competition, where we determine that such engines/equipment are unlikely to be used contrary to your intent."

> but a part of me does not like the idea that every vehicle owner is beholden to the OEM for parts in perpetuity.

I don't think the regulation requires OEM parts, Dorman and MagnaFlow sell bolt-on Catalytic converters without any trouble from the EPA. I think there is a real problem when it comes to more complex parts like ECUs but right to repair laws can help solve that by requiring documentation and restricting arbitrary locks of electronic components.

https://www.ecfr.gov/current/title-40/chapter-I/subchapter-U...

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by Scoundreller on Tuesday October 10, 2023 @04:43PM (#37837231)
I was thinking more about O2 sensors. At least a lot of Toyotas don’t like the aftermarket ones for some reason. No idea if they’re truly out of spec or what.

But there’s a risk with living with a check engine light. Some vehicles disable stuff like traction control in that state, and you won’t know when a new unique code has hit that you should deal with for other reasons.

(The disabling of traction control is insane to me here: https://mechanics.stackexchange.com/questions/25383/why-does... ). A catalytic converter problem is zero reason to do this.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by I_Am_Nous on Tuesday October 10, 2023 @05:06PM (#37837470)
My old Suzuki SX4 (RIP) disabled cruise control when it threw a code, but so far as I could tell that was the only thing it did. Traction control still worked, automatic/manual all wheel drive still worked...it was also a secondary catalytic converter alarm, so I just kept a code reader with me and reset it whenever it would come on.

It would always come on after I got off the interstate and coasted up the on-ramp, so I am not sure if it came on after getting hot enough on the interstate or if it was just the coasting that caused it.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by hunter2_ on Wednesday October 11, 2023 @05:08PM (#37850289)
> reset it whenever it would come on

> It would always come on after I got off the interstate and coasted up the on-ramp, so I am not sure if it came on after getting hot enough on the interstate or if it was just the coasting that caused it.

I suspect you may have had a very regular time/distance in the repetitive sequence of [reset code, drive some amount, code comes back]. For low-priority codes (unlike major engine emergencies) the ECU will use a "fault frequency" counter to suppress nuisance check engine lights that don't actually need fixing (like if a sensor was briefly out of range just once, a fluke rather than indicating a problem). So if it increments the fault frequency counter for that particular problem once every 10 miles of the fault actually happening continuously, and doesn't throw a check engine light until it counts to 6, then the light will come on after 60 miles. Just making up numbers but you get the idea... so if you always reset it that much driving before the same on-ramp, then it will always light up at that point. Also, the fault frequency counter might reset with every drive cycle, rather than just at the point that you cleared the code. Taking a detour during the same drive cycle as the on-ramp (as opposed to relying on variance of how long ago you did a reset) would be a good experiment.

But if you know that the drive cycles weren't so regular, then it could indeed be related to overrun fuel cut (coasting) or whatever.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by I_Am_Nous on Wednesday October 11, 2023 @05:43PM (#37850618)
It would basically always happen after about 30 minutes of interstate traffic at 70 MPH (using Cruise Control), but it generally didn't happen if I was only driving at 55/60 on standard highways. Just one of the quirks of the car :)
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by hoofhearted on Tuesday October 10, 2023 @05:19PM (#37837676)
The manufacturers got sued by the EPA for not actually enforcing the “for track use” only rule.

A lot of the big name exhaust companies have stopped producing catless products; and others require all of your information to be on file if you’re buying a catless race downpipe.

A lot of the install shops around here in Maryland that run a legit receipt paper trail of work type of business won’t even touch catless installs anymore.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by PH95VuimJjqBqy on Tuesday October 10, 2023 @05:47PM (#37838044)
is catless a portmanteau of catalytic converter and less? meaning, the lack of a catalytic converter?
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by hoofhearted on Tuesday October 10, 2023 @05:50PM (#37838086)
Yes. Remove the cat for either a straight pipe, or resonator.

HKS silently discontinued their “catless” downpipes in the U.S. around 2021 for mentioned reasons above.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by jojobas on Tuesday October 10, 2023 @07:39PM (#37839176)
Is is still legal to saw off you cat and weld a length of pipe in? I guess it still is if you can drive 60's cars, so what's the point?
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by tommoor on Tuesday October 10, 2023 @08:11PM (#37839423)
Legal in what respect? It wouldn't be legal to drive it
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by jojobas on Tuesday October 10, 2023 @08:26PM (#37839536)
So it's only legal to drive a catless car if it was manufactured that way 50 years ago?
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by bombcar on Tuesday October 10, 2023 @08:30PM (#37839555)
Correct. Federal prohibits tampering with or disabling lavatory smoke detectors I mean emissions equipment.

The loophole is that it doesn’t apply if you never take it off private property.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by talldatethrow on Tuesday October 10, 2023 @08:12PM (#37839432)
It has never been legal in the US to remove any emissions equipment on any vehicle that is to be driven on the street. Even if it is outside of the smog check window, it still can not be removed or tampered with.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by hoofhearted on Tuesday October 10, 2023 @10:01PM (#37840109)
No lol.. This is the EPA's whole argument.

You can't modify the factory emissions output to go below the required output.

People like the Diesel Brothers from the Discovery Channel settled for like $3 million USD with the EPA for selling and promoting emissions defeat devices like tunes and straight pipes.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by PH95VuimJjqBqy on Wednesday October 11, 2023 @09:13AM (#37843940)
ok, I've never heard the word catless but I've definitely driven vehicles that had a pipe welded in place :)

I or a family member has acquired a few vehicles where the catalytic converter was cut out by thieves, and I've done both so I can tell you from experience that it's the difference between $15 and $800 (parts and labor).

Having grown up extremely poor, sometimes families make those decisions because they don't really have a choice. Thankfully nowadays I do so I tend to err on the side of being a good citizen but personally will not judge anyone who choose s to weld a pipe in place rather than spend the exorbitant amount necessary to replace it, especially considering it might just get stolen again.

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by hallway_monitor on Tuesday October 10, 2023 @05:50PM (#37838081)
Yes
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by paulddraper on Tuesday October 10, 2023 @06:40PM (#37838663)
> not actually enforcing the “for track use” only rule

How does a manufacturer enforce the use of a device in that way?

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by mint2 on Tuesday October 10, 2023 @07:37PM (#37839166)
Verify their distributors are doing some sort of due diligence? Doesn’t seem that hard to make some sort of reasonable effort.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by 13of40 on Tuesday October 10, 2023 @10:13PM (#37840142)
Is the rule really about "track use" or is it just off-road or on-private-property use? How does the distributor know I'm not just rolling coal on my uncle's farm?
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by Scoundreller on Tuesday October 10, 2023 @11:51PM (#37840676)
From what I can find, "track use" isn't in the law, but rather a matter of enforcement discretion.

"The Clean Air Act does not contemplate removing emissions controls from an EPA-certified motor vehicle in order to convert it into a competition vehicle. As a matter of enforcement discretion, the EPA’s longstanding practice has been not to take enforcement action against vehicle owners for removing or defeating the emission controls of their EPA-certified motor vehicles, so long as they can show the vehicles are used solely for competition events and no longer driven on public roads."

https://www.autoweek.com/news/industry-news/a36482793/sema-e...

Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by hoofhearted on Tuesday October 10, 2023 @09:59PM (#37840096)
They will require you to fill out a waiver saying you that you will use it for offroad use only, and all liability is on you and not them. They will also require you to upload your photo id in order to purchase it.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by nikau on Wednesday October 11, 2023 @07:35AM (#37843206)
Man I wish they would do that here for all the "offroad use only" aftermarket LED bulbs that idiots stuff into non projector lenses.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by rumblerock on Tuesday October 10, 2023 @06:06PM (#37838282)
I for one love that BMW built the catalytic converters into the exhaust manifolds on my car, meaning that the only CARB-viable route outside of gambling on used units is a $10k replacement.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by superq on Tuesday October 10, 2023 @07:17PM (#37839003)
You forgot the /s.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by achates on Tuesday October 10, 2023 @11:07PM (#37840438)
You knew what you were getting into when you bought a BMW.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by datavirtue on Tuesday October 10, 2023 @06:40PM (#37838652)
I would fully suspect people to be fined for producing enhanced emissions reduction hardware and offering it for sale. The default emissions systems end up reducing the life of the engine, creating another problem for the environment, and there are opportunities for fixing those deficiencies.
Re:US Sues eBay for Allowing Sale of More Than 300k Emission... by omginternets on Wednesday October 11, 2023 @12:58AM (#37841044)
0W20 oil and EGR systems are going to go down in history as environmental disasters.