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    P0171 and P0174

    HI All, I have read a few threads on these codes. Background 98 4.0L, 2wd. I suspect a bad wiring at the MAF. REason is the BARO pid keeps setting back 4000ft elevation and I am sea level. The MAF has been replaced. No driveablity problem. Runs smooth lots of power. No obvious vacuum leak. Fauly...
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