Contour Enthusiasts Group Archives Forums Branches California Anyone know the EXACT procedure for Smog Tests?

Originally posted by Marky:

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Originally posted by ScottK:

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I could have swarn at the last test I got (test only station) they hooked up a computer to the OBD port. I figured they verified that the car had actually passed all it's monitor tests before running it on the dyno.

If they do that you may not pass as it'll probably come up with uncompleted tests.

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This was my experience. I passed all emissions, gas cap check, and the they told me I had a CEL that had been cleared and not fixed. I had just cleared the CEL that morning. I fixed the cause of the CEL and went back a couple of times and was told several items were not complete, O2 heater, catalyst, etc. I finally passed but it took a while for the ECU to learn the new parameters. If you have a CEL or if you clear a CEL without a repair, they will know.

I spoke to a mechanic that told me the OBD III will be no fun at all, and that it may be capable of reporting a CEL to the DMV via transponder. Can any of our experts confirm this?

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I want to know what would happen if I drove in with my fordchip chip in When I plug in my laptop the cat efficiency, egr and downstream O2 tests are not just disabled - they are totally removed. I'm curious if the test just looks for uncompleted tests (in which case I'd be ok) - or if it knows which tests should be there and sees if they are passed?