Ignition Timing: Inspection

WARNING: This page is about a different car, the 2005 Subaru Baja. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: After warming-up, engine becomes very hot. Be careful not to burn yourself during measurement.

Warm-up the engine.
To check the ignition timing, connect a timing light to No. 1 cylinder spark plug cord, and illuminate the timing mark with the timing light.
Start the engine at idle speed and check the ignition timing.
Ignition timing [BTDC/RPM]:

MT vehicle: 10°+/-8°/650

AT vehicle: 15°+/-8°/700

Fig 1: Checking Engine Ignition Timing
Courtesy of SUBARU OF AMERICA, INC.

If the timing is not correct, check the ignition control system.

Refer to BASIC DIAGNOSTIC PROCEDURE .