volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Fuel Injectors For Injection Quantity and Proper Seal, Checking|Page 3894 > < Fuel Injectors For Injection Quantity and Proper Seal, Checking|Page 3892
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Fuel Injector: Testing and Inspection
Fuel Injectors, Checking

With Manufacturer's Scan Tool

Fuel injectors, checking

Special tools and equipment

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V.A.G 1551 Scan Tool (or VAG 1552 mobile scan tool) with VAG 1551/3 cable

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VAG 1598/31 test box

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VAG 1526 multimeter or VAG 1715 multimeter

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VAG 1527 voltage test lamp

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VAG 1594 connector test kit

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Wiring diagram

Test requirements

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Engine speed (RPM) sensor must be working properly. See: Computers and Control Systems/Testing and Inspection/Component Tests and
General Diagnostics/Engine Speed (RPM) Sensor, Checking 

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Fuel Pump (FP) relay must be working properly.

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Fuses no.28 and 32 must be OK.

Checking Resistances of Fuel Injectors

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Test resistance of fuel injectors between terminals.
Specification: 13.5 - 15.5 Ohms

Fuel Injectors For Injection Quantity and Proper Seal, Checking|Page 3894 > < Fuel Injectors For Injection Quantity and Proper Seal, Checking|Page 3892