October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Mass Airflow Sensor

The Mass Airflow (MAF) sensor is a hot-film type airflow sensor mounted within the intake duct between the air cleaner and throttle body. MAF rate is measured by detecting changes in the temperature of the hot-film probe, and comparing it to changes in sensor resistance. ECM uses MAF signal to determine basic fuel injection pulse width and ignition timing.