Golf L4-1.8L Turbo (AWW) (2003)
Fuel Injector: Testing and Inspection
Injectors, Checking
Injectors, Checking
Special tools and equipment
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VAG1551 scan tool or VAG1552 mobile scan tool with VAG1551/3B cable
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VAG1598/31 test box
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VAG1526 hand multimeter or VAG1715 multimeter
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VAG1527 voltage tester
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VAG1594 adapter set
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Wiring diagram
Check conditions
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Engine speed sensor must be OK, checking. See: Computers and Control Systems/Engine Speed Sensor/Testing and Inspection
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Fuel pump relay must be OK
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All fuses must be OK.
Test Sequence
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First check the activation of the injectors via Output Diagnostic Test Mode. Refer to "Scan Tool Testing/Activating Actuators(Output Diagnostic
Test Mode)" under "Computers and Control Systems" See: Computers and Control Systems/Testing and Inspection
If one or more injectors do not click:
Checking resistance of injectors
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Check resistance of injectors between contacts.
Specification: 12 to 17 Ohm