volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Diagram Information and Instructions|Page 3517 > < Diagram Information and Instructions|Page 3515
Page 3
background image

-

Check resistance of fuel injectors individually.

Specification: 15-21.5 ohms.  

If the specification is not attained, replace fuel injector(s) as necessary.

Checking spray pattern and for leaks

WARNING:

-

DO NOT smoke or work near heaters or other fire hazards when working on fuel system.

-

The fuel system is pressurized! Before loosening hose connections or opening the test connection, wrap a cloth around the connection. Then
release pressure by slowly disconnecting the hose/fitting.

Special tools, testers and auxiliary items:

-

Connector test kit VW 1594.

-

VAG 1630 digital potentiometer.

-

VAG 1602 fuel analyzer.

-

Remove intake manifold, upper.

-

Remove fuel rail complete with fuel injectors.

-

Hold fuel injectors in VAG 1602 fuel analyzer.

Diagram Information and Instructions|Page 3517 > < Diagram Information and Instructions|Page 3515