Passat L4-1.8L Turbo (AWM) (2004)
Fuel Pressure: Testing and Inspection
Fuel Pressure Regulator and Residual Pressure, Checking - I
Fuel Pressure Regulator And Residual Pressure, Checking
The fuel pressure regulator controls the fuel pressure as a function of the Manifold Absolute Pressure (MAP).
The specified value for this test is dependent on the working pressure of the Fuel Pump (FP). This is about 4.0 bar positive pressure
Special tools and equipment
-
VAG1318 pressure gauge
-
VAG1318/6+7 adapter
WARNING: Fuel system is under pressure. Before opening system, place rags around the connection point. Then release pressure by carefully
loosening connection.
Test sequence
I - Engine code AEB, ATW
II - Engine code AUG, AWM