Vanagon F4-1915cc 1.9L (Water Cooled) (1983)
Fuel Injector: Testing and Inspection
Checking Fuel Injectors
CAUTION: Do not disconnect terminal 1 at ignition coil when operating starter
Checking Spray pattern
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Pull out fuel injectors in pairs but leave electrical plugs and fuel lines connected
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Disconnect electrical plugs at fuel injectors which are still installed (second pair)
WARNING: Fire hazard Do not smoke or have anything in area that can ignite fuel
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Hold injectors in jar or pan
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Operate starter briefly
Spray pattern must be an even, cone shaped spray
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Reinstall fuel injectors with new sealing rings (1)
Leak Checking Injectors
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Pull off electrical plugs at fuel injectors
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Pull out injectors in pairs but leave connected to fuel ring line
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Turn ignition ON for about 5 seconds (fuel pump operates briefly)
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Check that no more than 2 drops leak from each injector in one minute
Checking Voltage Supply
CAUTION: To prevent damage to control unit, do not short-circuit connector contacts
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Pull off all electrical plugs from fuel injectors
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Connect test light to one plug contact (arrow)
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Operate starter
Test light must flicker
If test light does not blink:
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Check relays