Quote:
Originally Posted by 94CivicVX
One thing to note : I fabricated a catalytic converter bypass pipe and am using a DX downpipe. I am concerned that perhaps it needs some backpressure at the O2 sensor to read correctly or something??!!
I'm totally stumped. Any insight at all would be greatly appreciated 
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I'm not 100% tracking what you are saying here, If it's that you are running a DX exhaust manifold to a cat-delete, then I'd say this has something to do with it!