Massey Ferguson 653.05 – AGCO SISU POWER EEM4: Injector Number 3 Low Amp Draw
Issue description
The engine management system has detected that the electrical current flowing to the solenoid valve of the #3 cylinder fuel injector is lower than expected. This indicates an open circuit, a disconnected plug, or high electrical resistance in the wiring or the injector solenoid itself.
Applies to these machines
62 machines- 4710
- 7724S
- 5712SL
- Interim Tier 4 (2012-2015)
- 7722
- 7722S
- 7615
- 5613
- 5713SL
- 7720S
- 7716
- 7718
- T4
- 7715
- 5710SL
- 7726
- 7616
- 7618
- 5608
- 4708
- 7619
- 7626
- 7726S
- 7624
- 4707
- 4709
- 5711SL
- 7614
- 7718S
- 5610
- 7620
- 7719
- 7714
- 7716S
- T4 (2015-2021)
- 5612
- 7622
- 7720
- Tier 4 (2015-2021)
- 5611
- 7715S
- 5609
- 7724
- 4600 Series
- 4607
- 4608
- 4609
- 4610
- 4700 Series
- 5600 Series
- 5700 Series
- 5710
- 5711
- 5712
- 6700 Series
- 6712
- 6713
- 6600 Series
- 7600 Series
- 7700 Series
- 8600 Series
- 8700 Series
Check the cause
Inspect the electrical connector at Injector #3 for corrosion, backed-out pins, or physical damage.
Inspect the wiring harness between the EEM4 ECU and Injector #3 for chafing, breaks, or disconnected grounds. Test for continuity from the ECU harness connector to the injector connector.
Measure the resistance (ohms) across the Injector #3 solenoid pins and compare it to a known good injector to check for an internal injector solenoid failure.
Repair steps
Disconnect power
Turn off the ignition and disconnect the battery to prevent electrical shorts.
Clean work area
Thoroughly clean the area around Injector #3 to prevent dirt or debris from entering the engine block or open fuel system.
Disconnect harness
Disconnect the electrical harness from the injector.
Remove high-pressure fuel line
Loosen and remove the high-pressure fuel line (inlet connector tube) connecting the common rail to the injector. (Note: It is highly recommended to replace the high-pressure connector tube whenever it is removed to ensure a proper seal).
Remove hold-down clamp
Remove the injector hold-down clamp/bolt.
Extract injector
Carefully extract the injector from the cylinder head.
Clean injector bore
Clean the injector bore in the cylinder head, ensuring the old copper sealing washer is removed.
Install new injector
Install the new injector equipped with a new copper sealing washer and O-ring.
Reinstall hold-down clamp
Reinstall the hold-down clamp and torque to OEM specifications.
Install new fuel line
Install the new high-pressure fuel line/connector tube and torque to spec.
Reconnect electricals
Reconnect the electrical harness and the battery.
Calibrate injector
Connect a diagnostic service tool (such as the AGCO EDT) to clear the fault code. You must program the new injector's calibration/trim code into the EEM4 ECU.
Parts you might need
(3)Fuel Injector (3.3L / 4.4L Engines)
V837073791Bosch Part # 0445110408. Includes the required seal ring.
Fuel Injector (6.6L / 7.4L / 8.4L Engines)
V837073713Bosch Part # 0445120235. Alternative OEM part numbers: 837073713, V837079432.
Connector Tube
V837073785Bosch Part # F00RJ02717. Sold separately and recommended for replacement alongside the injector.
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