Idle Speed: Adjustments

Idle Speed Setting:

1. Disconnect idle speed control-air bypass solenoid.
2. With transmission in Neutral or Park, run engine at 2500 rpm/30 seconds.
3. Place automatic transmission in Park, manual transmission in Neutral.
4. Check/adjust idle rpm:
Turn the throttle plate stop screw to 600-700 rpm automatic transmission, 625-750 rpm manual transmission.
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 engine and let it return to idle, lightly depress and release the accelerator. Let engine idle, if problem exists, refer to COMPUTER ENGINE CONTROLS/DIAGNOSTIC ROUTINES for other possible causes.