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Idle Speed, Co Level & Ignition Timing

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1992 Volkswagen Passat, 1992 Volkswagen Jetta, 1992 Volkswagen Golf, 1992 Volkswagen GTI, and 1992 Volkswagen Fox. However, it is still accessible from the selected car via links, so may be relevant.

Ensure idle speed, CO level and base ignition timing are set to specification. If necessary, see the ADJUSTMENTS article in this section.

IDLE SPEED & CO LEVEL

Application Idle RPM % CO Level
Cabriolet (1) 750-850 .3-1.1
Corrado
1.8L 750-850 .3-1.1
2.8L N/A N/A
Fox 875-925 (2) 1.2-1.5
Golf, Jetta & GTI
1.8L (Digifant) 750-850 .3-1.1
2.0L (CIS-E) (3) 800-1000 .2-1.2
Passat (3) 700-900 .2-1.0
(1) Disconnect coolant temperature sensor Blue connector.
(2) Clamp crankcase breather hose near emission control valve.
(3) Not adjustable.
IGNITION TIMING (Degrees BTDC @ RPM)

Application Checking Adjusting
1.8L (1) 4-8 @ 2000-2500 5-7 @ 2000-2500
2.0L
Except Passat 4-8 @ 800-1000 5-7 @ 800-1000
Passat 4-8 @ 700-900 5-7 @ 700-900
2.8L 4-8 @ 650-750 (2) *
(1) With coolant temperature sensor Blue connector disconnected.
(2) Ignition timing not adjustable.
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