View single post by Tsquare
 Posted: Mon Sep 7th, 2020 12:19 pm
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Tsquare



Joined: Fri Nov 10th, 2017
Location: Suwanee GeorgiaUSA
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That is supposed to be the upstream O2 sensor letting you know the air/fuel mix is off. My guess is ether MAF or injector.



____________________
Tony
NE ATL
'04 XLT regular cab 3.slo stepside
Came out of retirement to drive a school bus - I have lost my mind