Re: Po171 and fuel trims

Join Now

Posted to Technical Discussion Forum on 4/19/2014

Ok let me just recap this issue.

First off I thought the total trim numbers were interesting. I can't remember seeing numbers so high before.

Secondly, I was surprised to see a faulty O2 sensor cause that degree of correction. 2001 Front and Rear O2 data T... Login to read more.

Files Referenced:

Vehicle Data

2001 Pontiac Sunfire SE 2.2L

Engine	2.2 L
Trans	4-speed Automatic (Electronic)

Vehicle Data

2001 Pontiac Sunfire SE 2.2L

Engine	2.2 L
Trans	4-speed Automatic (Electronic)