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Old 22 Sep 2007, 03:09 pm
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Default 2003 Honda Accord Check Engine Light On Still On - Part is Replaced!!!?

My Accord has about 120,000 miles on it. The check engine light came on and I had it hooked up to a computer. I was told the downflow oxygen sensor needed to be replaced. So I picked one up from Honda, $120, and replaced it. The light went off. Two weeks go by and the light is on again. I have unplugged the battery to see if that would help. Light stayed off for about a week, only because it was relearning codes. Then I had the code taken out by a computer, and its back on again. I don't know what to do. Its saying that it is the same sensor that I have already replaced.
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Old 22 Sep 2007, 03:18 pm
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This is a common problem not just with your type of vehicle. You could be having a fuel mixture problem as in running to rich or too lean! What i would do is have it scanned again but I would have it checked by Honda and the reason is... A dealers scanner can show more than the smaller scanners that many mechanic shops have.(not that the smaller ones dont work because they do they just dont show detailed info.) I have had this prob. myself but it was e.g.r.
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Old 22 Sep 2007, 03:26 pm
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r u sure u replaced the correct o2 sensor? im sure with it being an 03 that it was a po141 code...we see alot of them...120 sounds to cheap for that o2 u need to make sure that it is the one thats in the cat that hooks up under the seat...and if u do have the right one make sure that its plugged up all the way
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