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

C70, S70 & V70

⁽³⁾ 850

⁽³⁾ .2-1.0%

S90 & V90

750

.2-1.0%

⁽¹⁾	Idle speed can only be checked, not adjusted. On C70, S70 & V70, CO level can only be checked. For S80 & V90 CO adjustment, see ADJUSTMENTS .

⁽²⁾	Measured upstream of catalytic converter with oxygen sensor connected.

⁽³⁾	With cooling fan on.

IGNITION TIMING (Degrees BTDC @ RPM)