A3 Quattro L4-2.0L Turbo (CBFA) (2009)
Fuel Pressure: Testing and Inspection
Fuel Pressure and Residual Pressure before High Pressure Pump, Checking
Fuel Pressure and Residual Pressure before High Pressure Pump, Checking
Special tools, testers and auxiliary items required
‹› Pressure gauge K-Jetronic (V.A.G 1318)
‹› Measuring container, fuel-resistant
Test Conditions
‹› Battery voltage at least 12.5 Volts.
‹› Fuel filter OK.
‹› Fuel tank at least 1/4 full.
‹› Fuel Pump (FP) control module (J538) OK; checking
‹› Ignition switched off.
Test Sequence
CAUTION!
The fuel system is pressurized (low pressure). Wear protective eye wear and clothing in order to avoid injuries and contact with skin.
Before opening the fuel system, place cleaning cloth around the connection. Then reduce residual pressure by carefully removing
connection.
-
Disconnect fuel supply line - arrow - by pulling release button.
-
Install fuel injection pressure gauge (V.A.G 1318 ) on fuel supply line connection with adapter.
-
Place hose - arrow - in a measuring container.