Rear O2 No Cats After LT Headers

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Nov 12, 2007 | 04:42 PM

abih

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Rear O2 No Cats After LT Headers

Need some help. Installed Hooker Comp Ceramic LT Headers and am running no cats & no rear O2 sensors. I was told by a local exhaust shop that the O2 Simulators do not always work. I have a Superchips Microtuner. I want the car to run right and have the engine light turned off. Installed K&N Filter, SLP Airbox, SLP MAF & bellow. Any & all help is much appreciated!!!!!

Nov 12, 2007 | 04:44 PM

jetlag

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From: Southaven, MS (near Memphis, TN)

Having a CEL from the rear O2 sensors missing won't cause your car to run bad...but there should be an option on the Superchips tuner to turn it off..

Nov 15, 2007 | 01:52 PM

radkon

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From: Cleveland, Oh

O2 simulators are now illegal, the only place you may find them is e-bay.

A tuner should be able to "turn off" the rear O2's.

Nov 15, 2007 | 02:02 PM

Pipelayaz

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From: Home: Flint, MI Stationed: Charleston, SC

I had no problem finding O2 simulators for sale....

http://www.ls1speed.com/cont.cfm?cid=C0000042

Nov 15, 2007 | 03:59 PM

Fast Toys Performance Parts

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We have O2 sims as well. For off-road use only. The ones we sell have the built in diagnostic circuit. Lots of the ebay ones fail and you have no idea.

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