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Q: CHECK ENG LIGHT CAME ON,WENT TO AUTO ZONE AND CODES PO402 AND P0340 ARE ACTIVE. on 2000 Ford Ranger

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
THE TRUCK IS RUNNING OK NOT MISSING AND NO LOSS OF POWER.
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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first off what are these codes. and sometimes momentary malfunctions will register a code. so find out what these are and please post them
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