Quote:
Originally Posted by steve99
I think you still have problem with hardware then, like sensor/wiring/connector, bad earth maybe exhaust leak or possibly even ECU
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I'm 100% sure you're right. Probably a secondary O2 failure or leak due to cross thread. When I installed them on my OFH I never bothered to see if it was cross threaded since the install to remove them and install was easy. Might have been an oversight on my part and now I'm just starting to see it now.