what is po 102 engine code

Asked by Sandi Aug 08, 2020 at 10:56 AM about the 2001 Mercury Grand Marquis LS

Question type: Maintenance & Repair

1 Answer
40,210

TDolby answered 3 years ago

That is a Mass air flow sensor code. Try removing it and clean it with CRC MAF cleaner and reinstall and see if the light goes out or clear the codes afterward. If that doesn't work, then maybe the sensor itself has failed. But check the wiring next, there could be an open, shorted, frayed, poor connection, etc. in the wiring.

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