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 spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Air Flow Meter/Sensor: Testing and Inspection


Inspection





1. With a voltmeter, back probe the MAF sensor connector ten~inals 2 and 5, in the following conditions for the following voltages:





2. If the voltage is not within tolerance, replace the sensor.
3. Check the MAF sensor body for cracks.