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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

New CA Regulations for Diesel Pickups?
10/11/2021 in the Emissions Forum
Just got a slick looking card in the mail from CARB. Our light truck RV hauler looks to be on a hit list of some kind. The card had a web address to look at: Proposed regulation: Not sure how this may apply to our personal, Diesel, light pickup that gets ...
1999 S10 reflash US/CA emissions PCM to Federal
09/27/2021 in the Emissions Forum
[Driveability: 99 Chevrolet S10 4.3L] I like to flash an imported US/CA emission truck PCM to US/Federal emissions in order to remove the smog pump and air check valves, but keep the same VIN, which is within Federal and Canadian emission standards. Stan...
OIS Scanner
09/14/2021 in the Emissions Forum
So.. It is time for me to update the scanner. Currently, I have two Motorola LI4279's and they are working good despite being dropped and abused multiple times over the years. Did get new batteries for them a year ago.. My specific problem is the new cars...

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