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Home >> Volvo >> 1991 >> 240 SE, AW70 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Idle Speed & Ignition Timing

Idle Speed & Ignition Timing

Ensure idle speed and ignition timing are set to specification. For idle speed adjustment procedures, see ADJUSTMENTS article in the ENGINE PERFORMANCE Section. Ignition timing is not adjustable.

IDLE SPEED & CO LEVEL

Application Idle RPM CO Level
Except 940 GLE & Turbo Models 775 (1) 0.6%
940 GLE 850 (1) 0.6%
Turbo Models 750 (1) 0.6%
(1) O2 sensor disconnected. CO level is measured before catalytic converter.
IGNITION TIMING (Degrees BTDC @ RPM)

Application (1) Timing
Except 940 GLE 12 @ 725-825
940 GLE 15 @ 800-900
(1) Ignition timing is computer-controlled and is not adjustable.