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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

What Happened Here?
09/30/2019 in the Emissions Forum
A guy came by the shop wanting a smog test. [Referee Certification Required] What exactly happened here? Have you seen this? All we could get was his buddy did something. What that was I don't know. I'm thinking he hooked another vehicle up and ran that c...
11 impala o2 monitor
09/26/2019 in the Emissions Forum
[Driveability: 11 Chevrolet Impala LS 3.5L] I have an 2011 impala vin k, 3.5 flex, will not run o2 sensor monitor no permanent codes, no codes stored, arrived with 2 new oem sensors installed confirmed part #s, I.P.T. data indicates 145 engine starts fro...
EVAP Testing and Quick-Connect fittings
09/24/2019 in the Emissions Forum
Wanted to throw this up for guys who do far more EVAP testing than I do. Lately I see more quick-connect fittings on more EVAP components making hooking-up the smoke tester a little less simple. Since I might only do this once every other month, I can nev...
What Is It With GM O2 Monitors?
09/21/2019 in the Emissions Forum
Does anybody have an answer on a simple question what it takes to run a GM O2 sensor monitor? In the old days, before 2006 or so it just took a few minute cruise at about 45 to 55 miles per hour. Now, and since about 2007 it can take hundreds of mil...
BAR 97 New Software for EVAP Tester
09/19/2019 in the Emissions Forum
I downloaded Software Version 1904 and everything went ok, so I thought. Analyzer is ESP Gen.3, EVAP tester is ESP/Waekon . Choosing " Evap Tester Record Purge ", or "Confirm Communication with EVAP Tester " from different menus ,all I get is a ' EVAP Tes...

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