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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.

Continue to the description of our next automotive discussion forum, the Industry Events Forum.

Recent Automotive Discussions in the Automotive Emissions Forum

GDI and valve carbon buildup
11/21/2020 in the Emissions Forum
Here is a very good video on GDI engines I ran across. Hope this helps someone out there. I have recently had one vehicle I had to use a walnut shell blaster to to clean the carbon buildup off the valves. This has become a common issue with GDI motors and...

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