A4 Sedan L4-2.0L Turbo (BPG) (2005)
-
Using the Multimeter V.A.G. 1526 A or equivalent, check the electrical harness connector for voltage.
Harness connector Terminal
Specified value
1 to Battery positive (+)
Battery positive (+)
2 to Ground (GND)
Battery positive (+)
3 to Ground (GND)
about 5 V
-
Switch the ignition off.
If specified value is obtained:
-
Replace the Low Fuel Pressure Sensor G410 , note the following:
NOTE: The 2.0L 4-Cyl. 4V (BPG) engine is equipped with two different Low Fuel Pressure Sensors G410 designs. One design is integrated into
the high pressure fuel pump and must be replaced as a complete assembly. The second design is not integrated into the high pressure fuel pump
and may be replaced separately.
If the specified value was not obtained:
Checking wiring connections
-
Connect the test box 1598/42 to the wiring harness of the Engine Control Module (ECM) J623. The ECM is not connected.
-
Using the Test Box 105 Pin VAG1598/42 and Multimeter V.A.G 1526 A or equivalent, check the following wiring connection for an open circuit.
Harness connector Terminal
Test box Socket
1
14
2
7
3
37
Specified resistance 1.5 Ohms max.
If the specification is not obtained:
-
Check the wiring for a short circuit to Battery positive (+) or an open circuit.
-
If necessary, repair the wiring connection.
If no malfunctions are found in the wiring:
-
Replace the Engine Control Module (ECM) J623.
Assembly is performed in the reverse order of removal.
Final procedures