Ignition Timing: Inspection

WARNING: This page is about a different car, the 2003 Subaru Outback, 2003 Subaru Legacy, and 2003 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 #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]:
1. MT vehicle: 10°+/-8°/650
2. AT vehicle: 15°+/-8°/700
Fig 1: Checking Ignition Timing
Courtesy of SUBARU OF AMERICA, INC.

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

Refer to Engine Control System. See BASIC DIAGNOSTIC PROCEDURES .