check engine light code P0171

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01-25-2014, 07:11 PM

#11

ueww40

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Quote:

Originally Posted by biglee88

It would but it won't be as pronounced the only things to affect one bank is pretty much fuel injectors or intake gasket

What are the chances that one or both 02 sensors have failed on bank 1. That's the only other thing I can think of that is on bank 1

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01-26-2014, 09:50 AM

#12

biglee88

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Not likely the o2 sensor reports the problem and if the sensor was bad the PCM would pick it up not changing and set a code if it still runs good then if really suspect intake gasket

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