Owning a 99 cali car and having two cats , does moving the O2 sensor really work , here in NJ they do an OBDII test at inspection , so will I continue to get CEL a light ?
I "upgraded" from the 99 two cat system to a 01 exhaust manifold and used the Racing Beat Race Header Kit to extend/reposition my oxygen sensors. It works just fine. No CEL.
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