Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Air Flow Meter/Sensor: Service Precautions

CAUTION: Ignition MUST be switched OFF before disconnecting the MAF (Mass Air Flow) sensor. After switching OFF ignition allow 20 seconds for the hot wire in the MAF (Mass Air Flow) sensor to heat up and self clean.