Quote:
Originally Posted by corbin09
Can I have them just turn the rear 02 sensors off? Will it still effectively work permanently clearing the CEL? Would my cars fuel map change with the CEL even though I have a tune? Thanks for your input!
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No it would not change the fuel trims since the rear o2 sensors are simply there to make sure the cats are present and functioning properly. The problem is that if you turn them off and go to emissions testing after reinstalling cats, you will fail as they would give an error when the emissions test looks for sensor readiness.
With a defouler, you just bolt it on and when you need to, bolt it off in a couple minutes rather than having to go to the Uprev tuner each time you need it turned on or off.