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Old 11-11-2010, 10:00 AM
8up 8up is offline
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Re: P0171 & P0174 Lean codes

Well, I tried the carb cleaner spray around the intake area. This made no change in idle. Tried with the engine cold and warmed up. I am also running a K&N air cleaner. Just for the heck of it, I replaced it with a standard air cleaner and cleaned the MAF sensor using the CRC MAF cleaner. Lets see if this does the trick, cheap try. If I can remember back this far, I started popping these codes when I cleaned and oiled my air filter last (I'm guessing). It is possible I over oiled the filter. I will keep you guys informed. By the way, my O2 sensors are original with 150,000 milkes on them. I guess they are next.
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