Air Flow Meter/Sensor: Service and Repair

REMOVAL

WARNING: DO NOT DISASSEMBLE THE MAF SENSOR. THE SENSOR CAN BE DAMAGED BY TOUCHING.

1. Disconnect the battery ground cable.







2. Open the engine air cleaner.
^ Disconnect the Mass Air Flow (MAF) sensor connector from the wiring harness.
^ Release the air cleaner clamp.
^ Separate the inlet side of the air cleaner from the outlet side of the air cleaner.







3. Cut the tape on the wire loom of the extension harness.
^ Peel back the wire loom from the extension harness near the grommet in the air cleaner.

CAUTION: Do not cut the MAF sensor wires when cutting the tape on the wire loom.







4. Remove the grommet from the outlet side of the air cleaner and slide the grommet down the extension harness.







5. Remove the MAF sensor plate and mass air flow sensor from the outlet side of the engine air cleaner.







6. Disconnect the MAF sensor connector.







7. Remove the nuts and separate the MAF plate from the mass air flow sensor.

INSTALLATION
1. Follow the removal procedure in reverse order.

CAUTION
^ Do not tamper with the MAF sensing elements located in the airflow bypass; tampering may result in unit failure.
^ The grommet used to seal the engine air cleaner housing at the extension harness must be fully seated. Failure to do so will result in unmetered air entering the engine.

NOTE
^ The MAF sensor module and body are calibrated and replaced as a unit.
^ Use the alignment notch to properly align the inlet side and the outlet side of the engine air cleaner.