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Automotive Emissions Forum

Professional automotive forum for discussion of automotive emissions, on-board diagnostics (OBD2), and emissions testing programs around the world. The discussions often cover both the non-technical aspects (such as enforcement, automotive politics, and legal), as well as the technical aspects of emissions and emissions-related repairs, including the differences between vehicle certification and the various inspection and maintenance programs around the world. This forum is for experienced automotive repair professionals only, membership required.

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Recent Automotive Discussions in the Automotive Emissions Forum

ESP BAR 97 Gas Calibration Failure
02/19/2019 in the Emissions Forum
We have a 20 year old ESP BAR 97 System 1 machine that is failing gas calibration with the following error messages displayed: "FAILED Response Time" "T10 failed limit for O2" "T90 did not fail limits" Can anyone confirm if the above error messages are as...
02/15/2019 in the Emissions Forum
Anyone on here have any issues with Praxair? I figured out they have been billing us for tanks we never had.... to the tune of over $7k for almost 9 years.
Engine change guidelines
02/01/2019 in the Emissions Forum
Hi everybody: So the reference guide has been rewritten, and I have been informed by a few people at BAR that a "CARB exempted engine package" does not need a ref label. I disagree based on the definitions provided in said guide. The only part of the book...
Equipment Available So. California
01/31/2019 in the Emissions Forum
Saw this on Craigslist. Just passing it on.
EGR passages clogged?
01/15/2019 in the Emissions Forum
[Driveability: 98 Chevrolet Express 2500 LS 5.7L] 1998 Chevy Express 2500 will not set monitors for EGR, CAT & Evap.. Will not set a check engine light either. Looking at mode $06 EGR fails, valve works, engine stumbles but does not die with valve dr...

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