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changed plugs got a new 02 sensor thank you pelican parts you guys have helped me out alot so once i replaced 02 sensor cel went out flat spot went away car ran great bout a week later cel comes on checked code it was p0431 saying something about warm up post cat i replaced all o2 sensors the recent one i mjust purchased was not one of those but went with bosch on all sensors is the cat going bad or should i try a 02 bung car runs fine i think maybe burning a lil more fuel than usual but i have been on the pedal a lil or try another sensor or should i try to map this thing by a shop maybe they can adjust fuel ratio was thinking of going with comp plenium wich it would need to be mapped right after?? any thoughts
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