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Home >> Ford >> 1991 >> Probe GT, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures >> Idle Speed & Ignition Timing >> 4-Cylinder Ignition Timing
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4-Cylinder Ignition Timing

NOTE: Ignition timing is not adjustable on models with DIS or EDIS.
4-CYLINDER BASE IGNITION TIMING

Application Degrees BTDC @ RPM
1.8L (1) 10 @ 700-800
1.9L (1) 10 @ 760-840
2.2L
Non-Turbo (1) 6 @ 750
Turbo (1) 9 @ 750
2.3L OHC
Auto. Trans. (2) 10 @ 790-850
Man. Trans. (2) 10 @ 830-890
2.3L HSC
Auto Trans. (2) 10 @ 680-760
Man. Trans. (2) 10 @ 810-890
2.5L HSC (2) 10 @ 675-725
(1) With STI terminal grounded.
(2) With SPOUT in-line connector disconnected.
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