1992 Subaru Legacy LSi, FWDFACTORY OEM SERVICE PROCEDURE

Idle Speed & Ignition Timing: Notes

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

IDLE SPEED SPECIFICATIONS

Application RPM
W/Accessories Off 600-800
W/Accessories On 800-900
IGNITION TIMING (1)

Application Man. Trans. Auto. Trans.
Non-Turbo 18-22 @ 700 12-28 @ 700
Turbo 7-23 @ 700 7-23 @ 700
(1) Degrees BTDC @ RPM
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:

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