volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Check Injectors For Leaks and Quantity Injected|Page 3339 > < Technician Safety Information|Page 3336
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Fuel Injector: Testing and Inspection
Check Injectors For Leaks and Quantity Injected

Special tools and equipment

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VAG 1348/3 Remote control

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VAG 1348/3-2 Adapter

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VAG 1602 Calibration tester

Test conditions

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The fuel pressure must be in order; check. See: Fuel Pressure Regulator/Testing and Inspection 

WARNING:  Fuel system is under pressure! Before opening the system remove fuse 28 and place a cloth around the connection. Then release
pressure by carefully loosening the connection.

Test sequence

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Pull connectors off injectors.

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Then remove fuel rail complete.

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Pull off vacuum hose from fuel pressure regulator.

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Lift fuel rail with injectors off intake manifold and support it.

Check Injectors For Leaks and Quantity Injected|Page 3339 > < Technician Safety Information|Page 3336