How to Regen a Cummins Diesel

Performing a DPF (Diesel Particulate Filter) regeneration, commonly referred to as a "regen," on a Cummins engine using Cummins Insite requires specialized diagnostic software and equipment. This regeneration process helps clear accumulated soot from the DPF, ensuring optimal performance and emissions compliance. Here's a general outline of the steps to initiate a regen using Cummins Insite:

Please note that the exact steps may vary based on the specific version of Cummins Insite software and the model of the engine you are working with. Always refer to the official user manual or guides provided by Cummins for accurate instructions.

  1. Connect Diagnostic Equipment:

    • Ensure that you have a compatible laptop or PC with the Cummins Insite software installed.
    • Connect the diagnostic adapter (RP1210-compliant) to the vehicle's diagnostic port and to your laptop or PC.

  2. Vehicle Identification:

    • Launch the Cummins Insite software on your laptop or PC.
    • Connect to the vehicle's ECM using the diagnostic adapter.
    • Perform the necessary steps to identify the vehicle, including entering the vehicle identification number (VIN) and selecting the appropriate engine model.

  3. Read Fault Codes:

    • Before initiating a regen, it's recommended to read any fault codes present in the ECM. Address any active fault codes before proceeding with the regeneration process.

  4. Initiate Regen:

    • Navigate through the Cummins Insite software to the section related to DPF regeneration.
    • Look for options related to "Forced Regeneration" or "Manual Regeneration." These options may vary depending on the version of the software.
    • Follow the on-screen prompts to initiate the regeneration process. The software will communicate with the engine's ECM to control the regen process.

  5. Monitor the Process:

    • During the regen process, Cummins Insite will display real-time data such as exhaust temperature, DPF pressure, and other relevant parameters.
    • Monitor the progress of the regen and ensure that the engine is operating within safe temperature and pressure ranges.

  6. Complete the Regen:

    • Once the regeneration process is complete, Cummins Insite will provide confirmation.
    • Clear any fault codes related to the regeneration process if they were generated during the regen cycle.

  7. Post-Regen Inspection:

    • After completing the regen, it's a good practice to perform a post-regen inspection to ensure that the DPF is clean and that all parameters are within normal ranges.

Please note that performing a regen using Cummins Insite requires a thorough understanding of the software and the engine's systems. If you're not familiar with the process, it's recommended to consult the official user manual or seek assistance from a trained Cummins technician to ensure the regen is performed correctly and safely.