Fast Idle Out of Specification When Cold

SYMPTOM
Fast Idle Out Of Specification When Cold

Check:
1. Idle Control System
a. Electronic Air Control Valve (14)
b. Idle Adjusting Screw
2. Coolant Temperature (TW) Sensor (6)
3. Air Intake System
a. Throttle Control System
b. Throttle Body
c. Throttle Cable
4. PGM-FI Control (ECU) Unit (BU)

NOTE:
After each symptom, the system that could be the source of the symptom are listed and should be checked in the order they are listed, beginning with #1.

(BU) code used when the CHECK ENGINE warning light is on, and the self-diagnosis indicator LED is ON with no "blinks", the back-up system is in operation.