Air Flow Meter/Sensor: Service and Repair

Air Induction System:

REMOVAL

CAUTION: Do not tamper with the sensing element located in the air flow bypass of the body.

1. Disconnect battery ground cable.

NOTE: When the battery has been disconnected or reconnected, some abnormal drive symptoms may occur while the Powertrain Control Module (PCM) relearns its fuel trim. The vehicle may need to be driven 16 km (10 miles) or more to relearn the fuel trim.

2. Loosen air cleaner outlet tube clamp at Mass Air Flow (MAF) sensor and remove engine air outlet tube from MAF sensor.
3. Disconnect electrical connector to MAF sensor.
4. Remove four retaining nuts.
5. Remove MAF sensor and discard old mounting gasket.

INSTALLATION
1. Clean sealing surfaces of Engine Air Cleaner (ACL) and MAF sensor of old gasket material.
2. Position new gasket and align new MAF sensor to studs of air cleaner cover.
3. Install four retaining nuts. Tighten to 8-12 Nm (71-106 lb in).
4. Install engine air outlet tube to mass air flow sensor. Tighten retaining clamp to 2-3 Nm (18-27 lb in).
5. Connect electrical connector to MAF sensor.
6. Reconnect battery ground cable.
7. Start engine and check for air leaks and correct sensor operation.