volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Fuel Injectors For Leaks and Quanity Injected, Checking|Page 4711 > < Fuel Injectors For Leaks and Quanity Injected, Checking|Page 4709
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Connect VAG 1598/22 Test Box to ECM wiring harness.

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Check wiring between Test Box and connector for open circuit 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: 1.5 Ohms maximum

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Also check wires for short to one another.
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Specification: Infinity Ohms

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Check wiring for open circuit between fuel injector connector terminals -1-.
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Wire resistance: 1.5 Ohms maximum

Fuel injector resistance, checking

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Check fuel injector resistance between terminals.
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Specification: 13.5 to 15.5 Ohms

If specification not obtained

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Replace faulty fuel injector. 

With Generic Scan Tool

Fuel Injectors, Checking

Recommended special tools and equipment

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VAG 1526 multimeter or VAG 1715 multimeter

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VAG 1527 voltage test lamp

Fuel Injectors For Leaks and Quanity Injected, Checking|Page 4711 > < Fuel Injectors For Leaks and Quanity Injected, Checking|Page 4709