Jetta L4-2.0L (AEG) (2000)
-
Check wire between 2-pin harness connector terminal -1- and Fuel Pump (FP) relay -J17- for open circuit according to wiring diagram.
Wire resistance: max. 1.5 ohms
If the LED flickers on one or several cylinders:
-
Remove wiper arms and plenum chamber cover.
-
Connect VAG1598/22 test box to control module wiring harness.
-
Check wiring between test box and fuel injector 2-pin harness connectors for open circuit according to 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: max.1.5 ohms
-
Additionally, check wires for short to one another.
Specified value: Infinity ohms
-
Check wiring for open circuit between fuel injectors (terminal -1-) according to wiring diagram.
Wire resistance: max. 1.5 ohms
-
If no malfunction is found in the activation or voltage supply, check resistance of fuel injectors.
Checking resistance of fuel injectors
-
Check resistance of fuel injectors between terminals.
Specified value: 14.0-18.0 ohms