861
Deutz-Fahr 861: Minimum Rail Pressure Undershot in Zumesseinheit Stage 2
Issue description
The system has detected a negative rail pressure deviation in the Zumesseinheit stage 2, indicating that the minimum rail pressure has been undershot. This may affect the proper operation of the fuel injection system.
Check the cause
Rail pressure sensor
Zumesseinheit stage 2
Fuel system pressure regulation
Repair steps
Inspect
Check the rail pressure sensor for proper function and connection.
Test
Verify the operation of the Zumesseinheit stage 2 under load conditions.
Check
Examine the fuel system for any blockages or leaks that may affect pressure regulation.
Parts you might need
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