3800 o2 sensor question...

VIN7

Member
Apr 22, 2008
49
0
O2's should be all over the place at idle, check your ltft's at idle, I bet they are maxed out if the O2 is staying low. Stick with an AC Delco sensor, I picked up a new AFS-109 AC Delco sensor for $45 bucks through an e-bay store, local dealer wanted $120.

Mike
 
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