Quote:
Originally Posted by SonicVQ
I hope that your CEL stays off, however 100 miles is not much of a test.
The newer ECU control strategy will detect the test pipes and throw a CEL of "too lean" due to the post cat o2 sensor being used to detect any lean/rich bias of the air/fuel ratio sensor.
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CEL came on after 360 miles. I use a code reader to clear the codes, but of course this now means I just MUST get tuned.
