5000S Quattro Sedan L5-2309cc 2.3L SOHC (NF) (1988)
Cold Start Injector: Testing and Inspection
Operational Test
(Fault code 4443)
Requirement:
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engine coolant temperature maximum 30°C (86°F)
NOTE: If engine temperature exceeds 30°C (86°F), disconnect the coolant temperature sensor connector and re-connect it to a substitute sensor
(which has been cooled down and jumper wire grounded).
Cold Start Valve
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disconnect coil wire 4 from ignition distributor cap and connect to ground with jumper wire
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remove cold start valve and point nozzle into suitable container (leave electrical connector and fuel line connected)
WARNING: Fire hazard. Do not smoke or have anything in area that can ignite fuel.
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crank engine with starter for 10 seconds
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cold start valve should spray fuel for period shown on graph
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wipe off nozzle with clean rag
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check valve for leaks
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after one minute, valve should be dry and free of fuel
If valve is wet or leaking
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replace cold start valve
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repeat check