FixVault

Mass Airflow (MAF) Sensor

Turn ignition on. Locate MAF sensor connector. DO NOT disconnect connector. Backprobing connector, measure voltage between connector terminals No. 2 and 4. See Fig 1. If voltage is not 0.1-0.2 volt, replace MAF sensor.

Fig 1: Identifying MAF Sensor Connector Terminals
G95J31236Courtesy of VOLVO CARS OF NORTH AMERICA.