Code p0171- HOW DO I FIX THIS
05-03-2012, 03:40 PM
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Code p0171- HOW DO I FIX THIS
i got at 99 grand cherokee, have a p0171 code, and need to figure out what to fix? any help would be awesome
cheers
cheers
Last edited by 44inchboggers; 05-03-2012 at 03:44 PM.
05-03-2012, 03:46 PM
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05-03-2012, 03:48 PM
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Year: 1995
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Engine: 4.0 with all of the noise and clatter
That code could be caused by a vacuum leak, incorrect fuel pressure, a faulty O2 sensor, something in the MAP sensor circuit, misfires, any number of things. I would start by looking for a vacuum leak.
05-03-2012, 03:51 PM
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alldata shows it as a 02 sensors before the cat. but vacuum leak could throw that code also
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