Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Air Flow Meter/Sensor: Service and Repair

REMOVAL

CAUTION: The mass air flow sensor hot wire sensing element and housing are calibrated as a unit and must be repaired as a complete assembly. Do not damage the sensing element (internal to housing) or possible failure of the Mass Air Flow sensor (MAF sensor) may occur.

1. Disconnect the battery ground cable.







2. Remove the crankcase ventilation tube and the wire harness from the air cleaner outlet tube.
- Disconnect the harness from the Intake Air Temperature sensor (IAT sensor).
- Remove the crankcase ventilation tube from the air cleaner outlet tube.







3. Remove the engine Air Cleaner.
4. Separate the engine air cleaner.







5. Remove the cover and the mass air flow sensor.







6. Remove the mass air flow sensor.
- Disconnect the connector from the mass air flow sensor.
- Remove the nuts.
- Remove the mass air flow sensor from the inner cover.












INSTALLATION

CAUTION: The mass air flow sensor cover is indexed. If the cover is not installed correctly damage to the mass air flow sensor will occur.

1. Follow the removal procedure in reverse order.