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

1. Remove the air flow meter.
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:

Terminal Specifications:

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