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Can't get this damn code to go away. Replaced the MAF sensor, the vacuum module and it's still on. Should I replace the oxygen sensor? On my Dash command code reader it shows a red flag for evaporative system. Whats that?
2 Replies
replace air filter to get rid of "p0171" and replace gas cap evap system, then erase codes.
have a smoke test done to determine if there is a vac leak. this could be injector,fuel pressure,exh leak or several other issues