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)

Or, hide this message: temporarily or permanently

Air Flow Meter/Sensor: Testing and Inspection

Airflow Meter Testing:

1. Remove air flow meter.
2. Check meter body for cracks.
3. Check that measuring plate moves smoothly.
4 Disconnect air flow meter connector.
5. Check resistance between terminals with plate fully closed and fully open as described on image chart.
6. Replace sensor if correct specifications cannot be obtained.
7. Reinstall connector after checking or replacement.