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A comment on Mechanic put in prison for selling 14000 truck emission bypass devices. Parent comment

Re:Mechanic put in prison for selling 14000 truck emission b... by bumby on Wednesday June 29, 2022 @05:27PM (#31925930)
High temps in the catalytic converter can sinter the precious metals, reducing the surface area of catalytically active surfaces, but I believe the effect is much more pronounced in CO and HC activation. The conversion of NOx is much more constant.
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Re:Mechanic put in prison for selling 14000 truck emission b... by sudosysgen on Wednesday June 29, 2022 @11:15PM (#31928387)
Ah, I was under the impression this wasn't the case, so you're probably right. Do you have a source I could refer to?
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Re:Mechanic put in prison for selling 14000 truck emission b... by bumby on Thursday June 30, 2022 @09:00AM (#31931816)
Internal Combustion Engine Handbook by van Basshuysen and Schafer. My edition is rather old (2004) so there may a newer one with different info as diesel and emission tech has changed a bit in the last 20 years.
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Re:Mechanic put in prison for selling 14000 truck emission b... by sudosysgen on Friday July 01, 2022 @01:39PM (#31949932)
Thank you! I'll take a look and try to find a more up to date source if possible.
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