Idle Speed & Ignition Timing

Ensure idle speed and ignition timing are set to specification. See MINIMUM IDLE SPEED SPECIFICATIONS table. For adjustment procedures, see ADJUSTMENTS article in the ENGINE PERFORMANCE Section.

MINIMUM IDLE SPEED SPECIFICATIONS ⁽¹⁾

Application

RPM

Automatic Transmission (Neutral)

450-550

Manual Transmission

550-650

⁽¹⁾	With ALDL diagnostic terminal grounded. See Figure .