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Joined: Fri Nov 10th, 2017
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Tony
NE ATL
'04 XLT regular cab 3.slo stepside
Semi retirement
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| Posted: Mon Sep 7th, 2020 08:19 am |
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Tsquare Joined: Fri Nov 10th, 2017
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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 Semi retirement |
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