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o2's and service engine light

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Old 05-03-2005, 05:36 PM
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Default o2's and service engine light

I installed headers and sims,now after about 1000 miles the service engine light came on.I got the codes and they were for the front and back 02's,how can I fix this?
Old 05-04-2005, 12:16 AM
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you could delete the rear 02s from the computer and that will solve the rears. the fronts i would check to make sure they are still good sometimes they can go bad, maybe check the plugs for the front ones.
Old 05-04-2005, 01:39 AM
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I have the simulators for the back, but the fronts took a **** after about 500 miles. Is there a way to delete them?
Old 05-04-2005, 02:41 AM
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No way to delete the fronts. They are essential. If you are throwing front o2 codes your car should be running poorly. It is probably running in closed loop, meaning it is ignoring the sensors and running off progamming.
I don't know why you're throwing rear codes, unless the simms crapped out. Have you tried reseting the pcm to see if the codes come back? What codes specifically are being thrown?
Old 05-04-2005, 06:37 AM
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As has been said, your car shouldn't be throwing REAR O2 codes with the sims. If it is throwing front O2 codes, then you need new O2s. No questions asked.
Old 05-05-2005, 10:45 PM
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when I got the cpu scaned it said bank 1 and 2 were bad,is bank 2 the rear o2's?
Old 05-06-2005, 04:10 AM
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Sensor 2 = rear O2. Sensor 1 = front O2. Bank 1/2 refers to the different sides of the engine.
Old 05-06-2005, 10:14 AM
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I think you should get the car rescanned and write down the codes.
Old 05-06-2005, 11:28 AM
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I use to get intermittant ses lights with my SLP longtubes. The guys at RevXtreme hooked it up and explained that sometimes the O2 sensors don't like the way the air pumps past the sensor and it will trigger the ses. Anyway, they edited the code out and no problems for me.
Old 05-08-2005, 06:11 PM
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redarrow did you delete the airpump or the o2's?
Old 05-10-2005, 07:36 PM
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Thanks for all the help




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