Quote:
Originally Posted by kellyefields
did you replace the o2 sensors when you did the header swap? reason I ask I have never seen a set come out of the stock headers without damage. if that is the case order two new ones. Yes it costs some $$$ but better than damage to your engine.
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if you dont rush the job and do it properly , it has to be well rusted in place to detroy those sensor or cross threaded.
I did 4 times my header and still using the same sensor .
but if they used an impact to remove those exhaust bolt or even drop or hit the sensor , they could have been damaged that way.
a suggestion to SS_Firehawk
swap those sensors on the opposite side (left in the right , right in the left) and redo a datalog to see if its really the same sensor that gives you bad reading.,,, if its does , then you know what to do !! $$$