Jetta V6-2.8L (BDF) (2002)
Fuel Injector: Testing and Inspection
Fuel Injectors, Checking
With Manufacturer's Scan Tool
Fuel Injectors, Checking
Special tools, workshop equipment, testers, measuring instruments and auxiliary items required
-
VAG 1526 Hand multimeter or VAG 1715 multimeter
-
VAG 1527 LED test light
-
VAG 1594 Adapter set
-
VAG 1598/31 test box
-
Electrical Wiring Diagrams
Test prerequisites
-
The fuses must be OK.
-
The battery voltage must be at least 11.5 V.
-
All electrical accessories, e.g. lights and rear window heating must be switched off.
-
If the vehicle is equipped with air conditioning, it must be turned off.
-
Selector lever must be in position "P" or "N" on vehicles with an automatic transmission.
-
Fuel Pump (FP) Relay -J17- must be OK., checking:
Checking activation
-
First check activation of fuel injectors via Output Diagnosis Test Mode (DTM)
See: Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Output Diagnostic Test Mode (DTM) (Function 03)
If activation is OK.:
-
Remove intake manifold:
NOTE: Seal the intake ports in the intake manifold or in the cylinder head with a clean cloth.
-
Pull connector off all fuel injectors.
Checking resistance of fuel injectors