Detroit Diesel Regen Tutorial

Detroit Diesel Regen Tutorial

How to Run a DPF Regen on a Detroit Diesel Engine (No Dealer Required)

If your Detroit Diesel truck is showing a high soot level, low power, or entering derate mode, you may need to perform a DPF regeneration—often called a “regen.”

This step-by-step guide shows you how to run a regen yourself using the Diesel Diagnostic Laptop Kit from DieselScanners.com. No dealer visit or subscription required.

🔌 Step 1: Connect to the Truck

You’ll need:

Instructions:

  1. Connect the adapter to the truck and laptop.

  2. Power on the laptop and open the Detroit diagnostics program.

  3. Connect to the ECM and verify vehicle info (VIN, engine model).

🛑 Step 2: Check for Fault Codes First

Before running a regen, scan for active fault codes—especially emissions or aftertreatment-related codes (like SPN 3719, SPN 5246, or SPN 4364).

Important:
You may need to resolve active codes before the regen will initiate.

🔥 Step 3: Initiate the Regen

Inside the software:

  1. Go to the Aftertreatment or Regeneration section.

  2. Select Forced Regeneration or Manual Regen.

  3. Follow the on-screen prompts to start the regen process.

The ECM will raise exhaust temperatures to burn off soot in the Diesel Particulate Filter (DPF).

📊 Step 4: Monitor Real-Time Regen Data

During regen, you’ll see key data on-screen such as:

  • DPF pressure

  • Exhaust gas temperature

  • Soot level

Let the regen finish without interruption (usually 20–40 minutes depending on soot load).

✅ Step 5: Confirm Completion

Once complete, the software will confirm the regen is successful. You should see:

  • Lower soot levels

  • Cleared or reset fault codes

  • Normal DPF pressure readings

🔧 Bonus Step: Post-Regen Check

After the regen:

  • Rerun diagnostics to ensure no active faults remain

  • Monitor live data for a few minutes to confirm the system is working properly

💻 Do It All Without the Dealer

You don’t need to wait in line, pay diagnostic fees, or tow your truck into a shop. With our all-in-one Diesel Diagnostic Laptop Kit, you can:

  • Run forced regens anytime

  • Clear derates and DPF codes

  • Test aftertreatment sensors and components

  • Keep your truck running and earning

🛡 Comes with a 2-year warranty and 30-day full refund policy (we pay return shipping!).

👉 Skip the tow and fix it yourself—shop now


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