check engine light, high flow cats??

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04-01-2005, 08:25 PM

joshweh

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check engine light, high flow cats??

I just had two installed and my check engine lights came back on for the 02 sensors. Any ideas why??? I heard i should just disconnect my battery and it should go away, is this correct, and if so, for how long?

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04-02-2005, 07:59 AM

Predator

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My rear O2 codes showed up after I installed hi-flows too (Random Tech). I never figured-out why, I just turned the codes off.

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04-02-2005, 08:23 AM

Predator

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BTW, if the codes showed up the first time they'll definitely come back. Either tune them out or get O2 sims.

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04-04-2005, 10:16 AM

pknowles

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Which codes are you throughing? I was throwing heater codes from the back O2's. I wraped the very bottom part of my headers mainly to protect the coating from stone chips and I havn't had codes since.

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