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)

Or, hide this message: temporarily or permanently

Air Temperature Sensor ( Ambient / Intake ): Testing and Inspection


1. Remove air cleaner cover, then disconnect rubber boot from sensor connector.
2. Measure resistance across sensor terminals using a suitable ohmmeter.
3. Resistance should measure 2.21---17.8K ohms at 68°F and .290---.354K ohms at 140°F. If resistance is not as specified, replace the sensor.