GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2002 🢒 Alero Export 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Mass Airflow Sensor Replacement

Removal Procedure
  1. Turn OFF the ignition.
  2. Disconnect the intake air temperature (IAT) sensor electrical connector.

    3. Object Number: 15974 Size: SH
  3. Disconnect the mass air flow (MAF) sensor (1) electrical connector.
  4. Remove the air inlet duct from the MAF sensor and the throttle body.
  5. Remove the MAF sensor from the air filter housing.

Installation Procedure

    Object Number: 15974 Size: SH
  1. Install the MAF sensor to the air filter housing.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the air inlet duct to the MAF sensor and the throttle body.

    3. Tighten
    Tighten the air cleaner duct clamps to 2 N·m (18 lb in).

  3. Connect the IAT sensor electrical connector.
  4. Connect the MAF sensor (1) electrical connector.
  5. Start the engine.
  6. Inspect the air intake duct for leaks.