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Home >> Volvo >> 1997 >> 850 R, 4D Wagon >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing - Turbo >> Idle Speed & Ignition Timing
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Idle Speed & Ignition Timing

See IDLE SPEED & CO LEVEL and IGNITION TIMING  tables. Idle speed is not adjustable.

IDLE SPEED & CO LEVEL (1)

Application Idle RPM (2) % CO Level
850 (3) 850 (3) .2-1.0
(1) Idle speed can only be checked, not adjusted. CO level can only be checked.
(2) Measured upstream of catalytic converter with oxygen sensor connected.
(3) With cooling fan off.
IGNITION TIMING (Degrees BTDC @ RPM)

Application (1) Timing
Turbo 6 @ 850
(1) Ignition timing is computer-controlled and is not adjustable.