Idle Speed: Adjustments

Adjustment Screw:

1. Warm engine to operating temperature. Connect tachometer.

Data Link Connector:

2. Turn engine and all accessories Off. Ground Powertrain Control Module (PCM) Self-Test Input (STI) pin at data link connector.

3. Start engine check idle speed. If not within specification, correct with idle speed adjustment screw.

IDLE SPEED: 600 - 700 rpm

4. Turn engine Off, remove STI ground, and let engine cool.

5. Start cold engine; idle speed should be higher than when warm.