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Home >> Subaru >> 1990 >> Legacy Wagon 2WD F4-2.2L SOHC >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Ignition Timing >> Adjustments

Ignition Timing: Adjustments

Because a distributorless ignition system is utilized, ignition timing can be checked but cannot be adjusted.

1. Warm up engine.
2. Confirm that throttle sensor idle switch is "ON."

Timing Marks:





3. Connect a timing light to #1 spark plug wire and check timing.

Ignition Timing (BTDC):
Non-Turbo models: 20° ± 8° @ 700 rpm
Turbo models: 15° ± 8° @ 700 rpm