Jetta GLS L4-1.8L Turbo (AWP) (2002)
-
Pull connectors off injectors.
-
Connect the VAG1527 voltage tester to the connector contacts of the injector to be tested using adapter cables from VAG1594.
-
Operate starter and check the activation for the injector.
The LED must flicker
If the LED does not flicker:
-
Switch ignition off.
-
Connect VAG1598/31 test box to control module wiring harness. The engine control module remains disconnected.
-
Check the wiring between the test box and connector for open circuit, short circuit to Ground (GND) or positive using wiring diagram:
Injector 1: contact 2+socket 96
Injector 2: contact 2+socket 89
Injector 3: contact 2+socket 97
Injector 4: contact 2+socket 88
Wire resistance: max. 1.5 Ohm
If no fault can be found in the wiring:
-
Replace engine control module.