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




The idle speed on these cars is controlled by the ignition and injection control units with the idle control valve, timing and mixture adjustments. If the idle speed is not within specifications, check for air leaks, (between the throttle and the cylinder head, as well as between the throttle and the air flow meter), defective components, or faulty wiring. The idle speed is not adjustable.