GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 LaCrosse 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Mass Airflow Sensor with Intake Air Temperature Sensor Replacement

Removal Procedure

    Object Number: 1208107 Size: SH
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.

    2. Note: The intake air temperature (IAT) sensor and the mass air flow (MAF) sensor are combined as one sensor.

  2. Disconnect the MAF/IAT sensor electrical connector (2).
  3. Loosen the air cleaner intake duct clamps.
  4. Remove the air cleaner intake duct from the air cleaner housing cover and the throttle body assembly.
  5. Remove the MAF/IAT sensor from the air cleaner intake duct.

Installation Procedure

    Object Number: 1208107 Size: SH
  1. Install the MAF/IAT sensor to the air cleaner intake duct.
  2. Install the air cleaner intake duct to the air cleaner housing cover and the throttle body assembly.

    3. Caution: Refer to Fastener Caution in the Preface section.

  3. Tighten the air cleaner intake duct clamp screws.

    4. Tighten
    Tighten the duct clamps to 3 N·m (27 lb in).

  4. Connect the MAF/IAT sensor electrical connector.
  5. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.