1252 - Fuel Injectors 2-4-6

Engine Management (DME M1.3):

Engine Management (DME M1.3): Fuel Injectors:

DME Control Unit Harness Connector:

1. With the ignition switch in the "OFF" position, disconnect the Digital Motor Electronic (DME) control unit harness connector X6000 (control unit is located in the E-Box). See COMPONENT LOCATIONS.
2. Connect a FUSED jumper between brown wire (terminal 36), of the DME control unit connector and ground.
3. Turn the ignition switch to the run position and MOMENTARILY connect a FUSED jumper between brown/yellow wire (terminal 17), of the DME control unit connector and ground.
4. Listen and feel fuel injectors 2-4-6.

^ If all three fuel injector valves click, remove fused jumpers. Replace the DME control unit.
^ If one or more fuel injection valves do not click, remove FUSED jumper at brown/yellow wire (terminal 17).

5. With the ignition switch in the OFF position, disconnect harness connectors X6102, X6204, X6206 from fuel injector valves 2, 4, and 6.
6. Turn the ignition switch to the run position and measure the voltages of each fuel injector connector.

^ Red/White wire (terminal 2) and ground = battery voltage. If not check wire to the DME main relay for open.
^ Brown/yellow (terminal 1) and red/white wire (terminal 2) = 0 volts. If not check Brown/yellow wire to terminal 17 of DME control unit connector X6000 for a short to ground.
^ Brown/Yellow wire (terminal 1) and ground = 0 volts. If not check wire to terminal 17 of the DME control unit connector X6000 for a short to voltage.

7. Reconnect a FUSED jumper between terminal 17 of the DME control unit harness connector X6000 and ground.

^ Brown/yellow (terminal 1) and red/white wire (terminal 2) = battery voltage. If not check brown/yellow wire to terminal 17 of connector X6000 for an open.
^ If all the voltages are correct, remove fused jumpers and replace the defective fuel injector(s).