New Holland 1824 – Engine ECU: Regeneration Needed: Soot Load Level Exceeds Threshold

The Diesel Particulate Filter (DPF) has accumulated a high level of soot, reaching between 100% and 140% of its normal operating capacity. This triggers a critical warning indicating that the after-treatment system must perform a regeneration cycle to burn off the excess soot and prevent further system issues or engine damage.

• T4
• T5
• T6
• T7
• T8
• Workmaster
• Boomer
• CR Series
• CX Series
• FR Series

1. 1

   Attempt a manual (parked) regeneration to see if the system can clear the soot load on its own. This requires the machine to be stationary in a safe, outdoor location away from flammable materials, with the engine at operating temperature and sufficient fuel (takes 20-40 minutes)

2. 2

   Check for other active fault codes in the engine or after-treatment system that might be inhibiting regeneration

3. 3

   Inspect the DPF Differential Pressure Sensor and its connecting tubes for blockages, cracks, or water ingress (incorrect readings can falsely indicate a full DPF)

4. 4

   Inspect Exhaust Gas Temperature (EGT) sensors to ensure they are functioning and can verify the 900-1200°F temperatures required for regeneration

5. 5

   Check the air intake system and air filter for leaks or blockages that could cause incomplete combustion and excess soot

6. 6

   Verify turbocharger boost pressure and ensure the EGR valve is not stuck open, as both can overwhelm the DPF with soot

7. 7

   Check the fuel system and injectors for issues affecting combustion quality

1. 1

   Address underlying faults

   Repair or replace any faulty components identified during diagnostics, such as cleaning or replacing sensors, fixing air intake leaks, or addressing turbocharger and EGR valve issues.

2. 2

   Perform a forced regeneration

   After addressing the root cause, use a diagnostic tool to initiate a forced or 'service' regeneration to clear the DPF.

3. 3

   Clean or replace the DPF

   If the DPF is physically damaged or so heavily clogged with soot and non-burnable ash that a service regeneration is ineffective, remove it for professional cleaning (baking) or replace it entirely.

4. 4

   Perform system resets

   After replacing components or cleaning the DPF, use a diagnostic tool to perform necessary resets for the DPF differential pressure sensor or the soot and ash accumulators in the ECM.