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

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Air Flow Meter/Sensor: Testing and Inspection

1. Remove the air flow meter.

Fig. 26 Air Flow Meter Inspection:





2. Check the air flow meter body for cracks.
3. Check that the measuring plate moves smoothly.
4. Disconnect the connector from the air flow meter.

Air Flow Meter Test -- Closed Position:




Air Flow Meter Test -- Open Position:




Air Flow Meter Test Values:





5. Move the measuring plate and check for resistance between the terminals with an ohmmeter.
6. Reconnect the connector after checking.