Air Monitor Calibration, Bump Testing, and Sensor Challenge These come under the heading of life safety and mission-critical considerations. By James R. MacNeal Oct 01, 2006 THERE is no better way ...

If the mass airflow sensor does not glow red within a couple of minutes of the engine being shut off check to see if the relays are applying voltage to the mass air flow sensor.

A mass air flow sensor is one of the numerous tiny widgets and gewgaws that make up a modern automobile's electronic fuel injection system. In the MAF's case, it tells the car's computer how much ...