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Home >> Audi >> 1990 >> 90 Base, 2.3 D, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Adjustments >> Ignition Timing
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Ignition Timing

Ignition timing, idle speed and idle mixture are closely interrelated and MUST be checked/adjusted together. See IDLE SPEED & MIXTURE in this article.

4-CYLINDER IGNITION TIMING

Application Degrees BTDC @ RPM
Checking Value 4-8 @ 780-900
Adjusting Value 5-7 @ 780-900
5-CYLINDER IGNITION TIMING

Application Degrees BTDC @ RPM
2.2L Turbo (M/T) (1) TDC @ 750-850
2.3L
Checking Value 13-17 @ 720-860
Adjusting Value 14-16 @ 720-860
(1) Idle speed for automatic transmission is 670-770 RPM.
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