obd code question
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obd code question
I have a 99 explorer 4.0 ohv with 130k. Starts and runs great. Get an occasional ck eng light. It shows codes p0171-p0174 running lean. Can't find any leaks. When I erase codes ck light stays off for a long time. It only seems to come on when it's a chilly morning here in Fla. Also a lot of dew in the air and on the car in the am. I'm gonna clean the maf. Can you point me to anything else? Thanks.
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