Air Flow Meter/Sensor: Service and Repair

Mass Air Flow (MAF) Sensor:

REMOVAL

CAUTION: The Mass Air Flow (MAF) sensor is a calibrated unit. Service hot wire engine element and housing as a complete assembly.

1. Disconnect battery ground cable.

NOTE: When the battery has been disconnected and reconnected, some abnormal drive symptoms may occur while the Powertrain Control Module (PCM) relearns its adaptive strategy. The vehicle may need to be driven 10 miles or more to relearn the strategy.

2. Remove air cleaner outlet tube.
3. Disconnect engine control sensor wiring connector from MAF sensor.
4. Remove four retaining nuts from air cleaner cover.
5. Carefully remove MAF sensor. Discard gasket.


INSTALLATION
1. Position MAF sensor with new gasket onto air cleaner cover.
2. Install four retaining nuts. Tighten to 8-12 Nm (71-106 lb in).
3. Install air cleaner outlet tube.
4. Connect engine control sensor wiring connector to MAF sensor.
5. Connect battery ground cable.
6. Start engine and check for vacuum leaks.