volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Fuel Injectors For Injection Quantity and Proper Seal, Checking|Page 3704 > < Fuel Injectors For Injection Quantity and Proper Seal, Checking|Page 3702
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Checking activation and voltage supply

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Connect VAG1527B voltage tester to harness connector terminals of fuel injector to be tested using cables from VW1594.

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Operate starter and check activation of fuel injector.
The LED must flicker

If the LED does not flicker:

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Switch ignition off.

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Remove wiper arms and plenum chamber cover.

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Connect VAG1598/31 testbox to Engine Control Module (ECM) wiring harness. Engine Control Module (ECM) is not connected by this action.

Fuel Injectors For Injection Quantity and Proper Seal, Checking|Page 3704 > < Fuel Injectors For Injection Quantity and Proper Seal, Checking|Page 3702