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Old 07-13-2018, 05:38 PM   #3
GONIF


 
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Drives: 73 VETTE ,, 05 2500hd diesel,14 1LE
Join Date: Feb 2014
Location: The Left lane PHOENIX AZ
Posts: 2,626
O2 sensors measure the amount of oxygen in the exhaust . Scan it and see what the code is , your car has 2 upstream O2's and 2 down stream O2's . Unplug each one and check to see if you have a bad connection and plug them back in . Your mods should not have caused the problem .
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