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Home >> Volkswagen >> 1994 >> Corrado Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Idle Speed, Co Level & Ignition Timing
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Idle Speed, Co Level & Ignition Timing

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

IDLE SPEED & CO LEVEL

Application Idle RPM CO Level %
Corrado SLC (1) 650-750 0.3-1.5
EuroVan (1) 775-825 0.3-1.2
Passat (1) 650-750 0.3-1.5
(1) Idle speed and fuel mixture (CO level) are not adjustable.
IGNITION TIMING (Degrees BTDC @ RPM)

Application Checking Adjusting
Corrado SLC 4-8 @ 2000-2500 5-7 @ 2000-2500
EuroVan (1) 4-8 @ 2000-2500 4-8 @ 2000-2500
Passat 4-8 @ 2000-2500 5-7 @ 2000-2500
(1) With Scan Tester (VAG 1551) in BASIC ADJUSTMENT mode, engine oil temperature at 176°F (80°C), and engine coolant temperature sensor disconnected.
IGNITION TIMING ADVANCE (Degrees BTDC @ RPM)

Application Specification
EuroVan
California (1) 15-38 @ 2200
Federal (1) 26-36 @ 2200
All Others (2)
(1) Vehicle NOT in BASIC ADJUSTMENT mode, engine oil temperature at 176°F (80°C), and Blue engine coolant temperature sensor connected.
(2) Ignition timing advance is computer controlled. Information is not available from manufacturer.
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