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

Idle Speed

Curb Idle Speed (in Neutral) 500 / 900 RPM

Note: Idle speed with solenoid de-energized is 500 RPM.


Fast Idle Speed 2500 RPM

Note: Fast idle speed is with:
- fast idle adjusting screw on second step of fast idle cam.
- engine at operating temperature.
- EGR vacuum hose disconnected and plugged.