Basic Idle Speed
NOTE:
ALWAYS check TPS adjustment after adjusting basic idle speed. See THROTTLE POSITION SENSOR (TPS)
.
- Bring engine to normal operating temperature. Connect Multi-Use Tester (MUT) to diagnostic connector, located under left side of dash. Ground ignition timing adjustment connector, located below master cylinder. Start and run engine until it reaches normal operating temperature.
- Select item No. 22 and read idle speed. If idle speed is not correct, adjust by turning idle Speed Adjusting Screw (SAS). If idle speed is higher than normal, even with idle SAS fully tightened, check to see if idle position switch has been moved.
- Adjust idle position switch if it has been moved. See IDLE POSITION SWITCH
under THROTTLE POSITION SENSOR (TPS)
. If idle position switch has not been moved, fast idle air valve may be leaking. Replace throttle body if fast idle air valve is leaking.IDLE SPEED SPECIFICATIONS
Application Curb Idle Basic Idle 1.5L 600-800 600-800