O2 sensors
11-03-2014, 02:01 PM
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O2 sensors I did an LS swap on my 86 C10. The rear O2s were removed and using the font ones. I had the ecu tuned to zero out the MAF sensor, everythings is stock in this 01 5.3 ls motor but the O2 sensors foul out all my plugs. I have used two sets of Bocsh O2s usng the NGK TR5 plugs now i have some densos that I am going home to try with a new set of plugs but if this doesnt work any other ideas. I am at the point of not running O2 sensors but I dont know if it will kill my gas mileage tremedously.
12-29-2014, 12:52 AM
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02 sensors How quickly are you talking about fouling? You are talking about fouling the plugs and not the 02 sensors...correct?
It sounds like your tune may be off and running way too rich. If you have used that many 02 sensors, I would get the tune checked.
It sounds like your tune may be off and running way too rich. If you have used that many 02 sensors, I would get the tune checked.