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
If it fails: lemon-manuals.org.ua

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Computers and Control Systems: Adjustments




Idle speed adjustment is electronically controlled by the Single Board Engine Controller (SBEC) and is not adjustable. If idle speed is out of range, refer to Powertrain Management/Fuel Delivery and Air Induction/Testing and Inspection/Procedures.