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Home >> Subaru >> 1990 >> XT 1.8 4, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Idle Speed & Ignition Timing

Idle Speed & Ignition Timing

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Ensure idle speed and ignition timing are set to specification. For adjustment procedures, see the ADJUSTMENTS article in the ENGINE PERFORMANCE Section.

IDLE SPEED SPECIFICATIONS

Application (1) RPM
Legacy 600-800
Loyale
1.8L TBI 600-800
1.8L PFI 700-900
XT, XT6
Man. Trans. 600-800
Auto. Trans. 700-900
(1) Transmission in Neutral.
IGNITION TIMING SPECIFICATIONS (1)

Application Degrees BTDC @ RPM
Legacy 20 @ 700
Loyale
1.8L TBI 20 @ 700
1.8L PFI 20 @ 800
XT, XT6
Man. Trans. 20 @ 700
Auto. Trans. 20 @ 800
(1) On all models except Legacy 2.2L, connect test mode connector and ensure idle switch contacts are closed.