Deutz-Fahr M160 – Engine ECU (EMR - Engine Management Regulator): Injector Cylinder 1: Open circuit / Injector 1 unplugged

The engine control module is unable to detect the electrical presence of the fuel injector on cylinder 1, indicating a break in the electrical circuit, an unplugged connector, or a failed internal solenoid within the injector itself.

• 5D VSF TTV Series (Tier 4i)
• 5D Series
• 5G Series
• 6C Series
• Agrotron series
• 5080 DF/DS/DV Ecoline
• 5115 D TTV
• 5090 G
• Machines utilizing the Deutz TCD 3.6 L4 engine

1. 1

   Check the electrical connector at Injector 1 to ensure it is securely plugged in and not loose.

2. 2

   Inspect the wiring harness between Injector 1 and the Engine ECU (specifically ECU pin A02 or corresponding) for continuity, cable breaks, or short circuits.

3. 3

   Test the injector's internal resistance with a multimeter to confirm if the open circuit is inside the injector body.

4. 4

   Switch the ignition off, wait until the ECU has completely shut down, and switch the ignition back on to see if the error remains active (verifying it is a hard fault and not a temporary glitch).

1. 1

   Secure the Machine

   Park the tractor on a level surface, set the parking brake, and turn off the ignition.

2. 2

   Access the Injectors

   Open the hood and locate the fuel injectors on top of the engine.

3. 3

   Repair Wiring (If Applicable)

   If the diagnostic checks revealed a broken wire or corroded connector at the injector harness, repair or replace the damaged wiring section and re-test.

4. 4

   Remove the Faulty Injector

   If the wiring is intact, the injector itself has failed. Disconnect the electrical connector and the high-pressure fuel lines from Injector 1.

5. 5

   Install the New Injector

   Remove the old injector and install the replacement. Reconnect the fuel lines and torque them to OEM specifications.

6. 6

   Re-establish Connections

   Plug the electrical harness back into the new injector.

7. 7

   Clear Codes and Test

   Turn the ignition on, clear the M160 fault code from the EMR, start the engine, and check for fuel leaks and proper engine operation.