2009 cobalt O2 sensor troubles - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 3 (permalink) Old 08-06-2015, 12:39 PM Thread Starter
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2009 cobalt O2 sensor troubles

Ok, if you saw in previous messages I was getting the P2270 code, bank 1 sensor 2 oxygen sensor signal stuck lean....I replaced both sensors since I discovered my upstream sensor was also lousy. I now have a new CEL code, P013E sensor delayed response rich to lean bank 1 sensor 2...anyone know what I could do?
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post #2 of 3 (permalink) Old 08-06-2015, 02:30 PM
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Are you using ACDelco or OEM? These Ecotec seem to be particularly sensitive and work best with these. This code could be a breaking in result. reset it a few times and give it 100 miles before it settles.

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post #3 of 3 (permalink) Old 08-07-2015, 01:20 PM Thread Starter
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I hope you're right! When I had the code read it did say pending, I don't know if that means anything! I will drive it around some more. Hopefully that'll work. Thanks for responding!
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