Quote:
Originally Posted by nickg
the real question would be are the rear cats monitored? a lot of cars only monitor the front cats for performance? the rear cats are NOT always monitored...so they could go and not create a CEL. To know the answer, just look at the position of the second O2 sensors in relation to the rear cats...if they are before...no issue to remove them, if they are after the second cat? you get CEL if they are deleted
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