1993 Subaru SVXFACTORY OEM SERVICE PROCEDURE

Idle Speed & Ignition Timing

Verify idle speed and ignition timing are set to specification. Refer to the IDLE SPEED SPECIFICATIONS  table and the IGNITION TIMING  table. For adjustment procedures, see ADJUSTMENTS article.

IDLE SPEED SPECIFICATIONS

Application (1) RPM
Impreza
With Accessories Off 600-800
With Accessories On 800-900
Justy 650-750
Legacy
With Accessories Off 600-800
With Accessories On 800-900
Loyale
Non-Turbo 600-800
Turbo 700-900
SVX
With Accessories Off 510-710
With Accessories On, In Neutral 750-850
With Accessories On, In Drive 650-750
(1) With test mode and read memory connectors connected.
IGNITION TIMING (Degrees BTDC @ RPM)

Application Man. Trans. Auto. Trans.
Impreza N/A 12-28 @ 700
Justy (1) 5 @ 800 (1) 5 @ 850
Legacy
Non-Turbo 18-22 @ 700 12-28 @ 700
Turbo 7-23 @ 700 7-23 @ 700
Loyale
Non-Turbo 20 @ 700 20 @ 700
Turbo 20 @ 800 20 @ 800
SVX N/A 12-28 @ 610
(1) With test mode connector connected.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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