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)

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Without Computer Control

NOTE: Preferred setting is the midpoint of range given.

NOTE: Make all adjustments with engine at operating temperature.

Slow Idle
1. Disconnect solevac electrical and vacuum leads.
2. Set idle speed to specification.
3. Apply manifold vacuum to vacuum actuator and set actuator speed to specification.
4. With AC, turn unit ON, apply battery voltage to the solenoid electrical connector and adjust speed to specification.

NOTE: If the vehicle is equipped with a shutdown solenoid, electrically disconnect the solenoid and set shutdown speed to specification.

Fast Idle
- Set fast idle with TCS and EGR systems disabled.