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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Fast Idle Out of Specification When Cold

Check in Order Listed

1. Idle Air Control Valve (IAC) (code 14)
2. Other Idle Controls
a. Fast Idle Thermo Valve
b. Idle Adjusting Screw
3. Engine Coolant Temperature (ECT) Sensor (code 6)
4. ENGINE CONTROL MODULE (ECM) (BU) [1]

[1] With the Service Check Connector jumped and the engine is running, if the MALFUNCTION INDICATOR LAMP is ON with no "blinks", the back-up system is in operation.

NOTE: On Canadian models the MALFUNCTION INDICATOR WARNING LAMP is the CHECK ENGINE LAMP.