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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

AB 1274
05/19/2017 in the Emissions Forum
Hi EmF'ers, There's talk going on in various Smog Forums about legislation being proposed to extend the smog check exemption period from 6 to 8 years. I'm putting this up so that if you find the arguments compelling, you will call your Assemblyman from wh...
Dodge Ram
05/17/2017 in the Emissions Forum
[Driveability: 07 Dodge Ram 3500 SLT 6.7L] While checking an intermittent turbo code, I cleared the CEL to see if it would run monitors for a CA emmision test. I realized clearing the codes on this unmodified 6.7 did not erase any of its monitors, allowi...
'partial' lev ?
05/10/2017 in the Emissions Forum
while doing a basic 60k service on a '15 subaru forester , i saw the phrase "partial ulev" attached to the "forester" logo . it might have also said "partial lev" . regardless , what does "partial" really mean ? it reminds me of the old chrysler single ca...
Another One Bites The Dust!
05/04/2017 in the Emissions Forum
[...] [[...]].
code 143 tank leak major
04/30/2017 in the Emissions Forum
[Driveability: 02 BMW 330i 3.0L] I have this bmw with this code 143 . The customer says this problem came about after he overfilled the fuel tank . The pump did not shut off and overfilled the tank. He has driven 2 tanks of fuel out and has multiple prob...

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