Question about 2004 Chevrolet TrailBlazer

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Changed o2 sensor light went off ,But ob code PO410 still comes up with light off

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  • Chevrolet Master
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You have to use a scanner to erase the code stored in the ecm, this should solve the problem

Posted on Dec 12, 2009

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Posted on Jan 02, 2017

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Obd 2 scan reading said engine misfire, bad plug. I changed all the plugs, and the position 1 O2 sensor. check engine light is still flashing........What else could it be? Confused in Teeterville


the spark plugs that you changed, evidently 1 of them was misfiring , according to the computer, and the engine since it was misfiring, made the engine run rich, there fore you said that you changed the o2 sensor, so just make sure that you have the o2 sensor connection is connected good, then take your ob 2 tester, and remove the light, it should go out and stay out, if your tester is not equipped to remove the light, then disconnect the positive battery cable for about 1 minute, then reconnect it, but you will most likely have to reset your vehicles clock, and maybe some radio functions, also if the light comes back on again, check the plug wire that goes to the cylinder of the one that was misfiring, hope that is has helped you.

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Troubleshooting code P1167 for my 2002 Hyundai Santa Fe


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