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

Cold Fast Idle Out of Specification

SYMPTOM:
Cold fast idle is out of specification.

CHECK:
1. Idle Controls
2. Coolant Temperature Sensor (6)
3. Electronic Control Unit *
4. Throttle Angle Sensor (7)
5. Cylinder Sensor (9)
6. Intake Air Temperature Sensor (10)
7. Atmospheric Pressure Sensor (13)

NOTE:
Numbers in parentheses are the blink codes displayed on the back of the ECU.
* LED on the ECU is not on, or stays on without blinking.