Idle Speed: Adjustments

IDLE SPEED

1. Disconnect Idle Speed Control Air Bypass Solenoid.
2. Place automatic transmission in PARK, manual transmission in NEUTRAL.
3. Start engine and run at 1500 rpm for 30 seconds.
4. Check/adjust idle rpm using the throttle plate stop screw.
^ A/T 650 +/- 25 rpm.
^ M/T 600 +/- 25 rpm.
5. Engine OFF reconnect Idle Speed Control Air Bypass Solenoid, verify the throttle is not stuck in the bore and linkage not preventing throttle from closing.
6. Start engine and stabilize for 2 minutes then goose the engine and let it return to idle, lightly depress and release the accelerator let engine idle. If idle problem still exists check for other possible causes.