TT Quattro Coupe L4-1.8L Turbo (BEA) (2003)
Fuel Injector: Testing and Inspection
Fuel Injector Leakage, Injection Quantity and Spray Pattern
Injection Quantity, Proper Seal And Spray Pattern Of Fuel Injectors, Checking
Special tools and equipment
-
VAG1348/3-2
-
VAG1348/3A
-
VAG1594A
-
VAG1602
-
VAS5051 with VAG5051/1
or
-
VAG1551 with VAG1551/3B
Test requirement:
-
Fuel pressure OK, checking. See: Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics/System
Pressure, Fuel Pressure Regulator and Holding Pressure
Test sequence
-
Remove fuel rail including fuel injectors from intake manifold. Fuel lines remain connected.
-
Connect VAG1598/31 test box at wiring harness to ECM, do not connect ECM. See: Computers and Control Systems/Testing and Inspection/Scan
Tool Testing and Procedures/Scan Tool Testing/Scan Tool Connecting and Initial Checks/Wiring and Component Testing Using VAG1598/31
Test Box
-
Bridge terminals 1 and 65 at test box using adapter cables from VAG1594A connector test kit (this step supplies Ground (GND) to one side of
relay coil for Fuel Pump (FP) relay).