Passat Wagon L4-1781cc 1.8L Turbo (AEB) (1998)
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LED tester must light up
If LED does not light up:
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Switch OFF ignition
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Check wiring for open circuit between 2-pin harness connector terminal 1 and fuel pump relay J17 using Wiring diagram.
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Wire resistance: max. 1.5 Ohms
If LED flickers on one or several cylinders:
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Connect VAG 1598/22 Test Box to Engine Control Module harness connector.
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Check wiring for open circuit between Test Box and connector using Wiring diagram.
Injector 1: Terminal 2 + socket 73
Injector 2: Terminal 2 + socket 80
Injector 3: Terminal 2 + socket 58
Injector 4: Terminal 2 + socket 65
Wire resistance: Max. 1.5 Ohms
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Check wires for shorting to one another.
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Specification: Infinity Ohms
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Check wiring for open circuit between connector terminals 1 of fuel injectors.
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Wire resistance: Max. 1.5 Ohms
Fuel injector resistance, checking
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Check fuel injector resistance between connector terminals on the fuel injector.