Idle Speed & Ignition Timing

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1998 Volvo V90, 1998 Volvo V70, 1998 Volvo S90, 1998 Volvo S70, and 1997 Volvo V90. However, it is still accessible from the selected car via links, so may be relevant.

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)

Application		Timing
C70, S70 & V70
Non-Turbo		10 @ 800
Turbo		4-8 @ 850
S90 & V90		5 @ 750