The MAF sensor uses a hot wire sensing element to measure the amount of air entering the engine. Air passing over the hot wire causes it to cool. This hot wire is maintained at 200°C (392°F) above the ambient temperature as measured by a constant cold wire. If the hot wire electronic sensing element must be replaced, then the entire assembly must be replaced. Replacing only the element may change the air flow calibration.
Removal & Installation
- Disconnect the battery ground cable.
- With the vehicle in NEUTRAL, position it on a hoist.
- Disconnect the MAF sensor electrical connector.
- Remove the two MAF sensor retaining screws.
- Remove the MAF sensor.
Installation is the reverse of the removal procedure.