In this post, you will learn everything you need to know about DPF regeneration (DPF REGEN), the Launch diagnostic tools that feature this function, and how to perform this special function using a Launch tablet.
DPF regeneration is essential for maintaining optimal DPF performance. LAUNCH X431 has updated a new graphical interface for DPF regeneration on LAUNCH diagnostic tablets. This significant upgrade empowers technicians to monitor critical data in real time with enhanced clarity and ease, ensuring the Diesel Particulate Filter operates at peak efficiency. The regeneration process typically takes about 30 minutes, and the new interface allows instant access to key metrics such as speed, temperature, and pressure related to the exhaust aftertreatment system.
Previously, technicians tracked the DPF regeneration process through a text-based display. The newly designed graphical interface simplifies this experience. Now available for all commercial vehicles using the X431 PAD5 LINK HD and X431 PRO3 LINK HD, as well as major passenger car brands with LAUNCH X-431 diagnostic tablets, this update provides a clear visual representation of the process, making it easier than ever to monitor performance and regeneration.
Comparison: the previous text-based UI and the new graphical UI for the DPF Regen process on a commercial vehicle (CUMMINS)
The graphical DPF Regen process running on passenger cars (PORSCHE/TOYOTA/FORD):
ALL ABOUT THE DPF REGEN YOU NEED TO KNOW
1.What is DPF Regen?
The Diesel Particulate Filter (DPF) is an essential component of diesel vehicle exhaust systems, designed to capture and filter particulates from engine emissions, thereby reducing pollution. While the engine is idling, technicians can initiate DPF regeneration using a diagnostic scan tool. This process primarily involves periodically utilizing combustion to oxidize and eliminate accumulated particulates from the filter, ensuring its performance remains optimal and stable.
2.When to perform DPF Regen?
DPF regeneration is necessary in the following situations:
a) When replacing the exhaust back pressure sensor.
b) During the removal or replacement of the particulate filter.
c) When the fuel additive injector is removed or replaced.
d) During the removal or replacement of the catalytic oxidizer.
e) If the DPF regeneration warning light is illuminated; regeneration should be performed after repairs.
f) When repairing or replacing the DPF regeneration control module.
3.What is the principal of the DPF Regen process?
As the Diesel Particulate Filter (DPF) collects particulates, it gradually becomes clogged, which can impact exhaust efficiency. To counteract this, DPF regeneration heats the exhaust system to burn off the accumulated particulates, transforming them into gases like carbon dioxide and effectively cleaning the filter. DPF regeneration can occur in two ways:
- Active Regeneration:
The vehicle’s ECU actively controls fuel injection or increases exhaust temperature to automatically initiate the regeneration process.
- Passive Regeneration:
During normal driving, the exhaust temperature rises naturally, allowing the regeneration process to occur.
This function is essential for ensuring that diesel vehicles comply with emission standards while maintaining optimal power and fuel efficiency.
4. Which LAUNCH diagnostic tool support DPF Regen?
LAUNCH diagnostic tools support DPF regeneration, not only through the X-431 tablets but also via some CRP/CRE scanners, including:
- Creader Professional 919S(359)
- Creader Professional 919S Lite(349)
- Creader 909S(349)
- Creader 129S (239)
- Creader 123S (233)
- Creader Elite X and more
5. Are all vehicle diagnostics by LAUNCH X-431 tablets GRAPHICAL for DPF Regen?
Currently, the X-431 PAD5 LINK HD and X-431 PRO3 LINK HD scan tools support the DPF Regen feature in a graphical format for almost all commercial vehicles. Additionally, several mainstream passenger cars are supported with graphical DPF Regen on the following X-431 diagnostic tools, including:
- X-431 PAD9 LINK
- X-431 PAD7 LINK(X431 PAD VII Elite)
- X-431 PAD5 LINK(X431 PAD V Elite)
- X-431 PRO3 LINK
- X-431 PRO3 SE
- X-431 PRO SE
- X-431 PRO SE LITE
6. How to perform DPF Regen using a LAUNCH X431 diagnostic tool?
STEP 1: Connect the diagnostic tool to the vehicle.
STEP 2: Select the vehicle engine model.
STEP 3: Navigate to DPF Regen function on your diagnostic tablet.
STEP 4: Start the DPF regeneration process using your diagnostic tablet.
STEP 5: Monitor the process and ensure it completes successfully.
For example: Do DPF Regen for CUMMINS by X431 Scan Tool:
STEP 1: Enter the software first.
Method 1: Enter by Vehicle Diagnostic Software
Method 2: Enter by Service Function (select DPF REGEN)
Here takes method 1 as an example.
STEP 2: Enter the CUMMINS diagnostic software and select “System Automatic”.
STEP 3: Tap “Actuation Test” and select “Aftertreatment Diesel Particulate Filter Regeneration” to start the process.
STEP 4: Pay attention to the conditions for function execution and possible completion scenarios
STEP 5: Click “YES” for the new graphical interface and “NO” for the old interface.
STEP 6: Main part for various components real-time data streams during execution.
STEP 7: Press “START” button and read the terms for consideration.
STEP 8: Test is running and timing also starts.
STEP 9: Wait a while until the process is completed!
7. How long does the DPF Regen take?
The complete DPF regeneration process typically takes about 20 to 40 minutes, depending on several factors, including:
a) Vehicle Model:
Different vehicles may have varying DPF designs, engine configurations, and exhaust systems, all of which can affect how quickly the regeneration process occurs. Some vehicles are optimized for faster regeneration.
b) Level of DPF Blockage:
The more particulates and soot accumulated in the DPF, the longer the regeneration process may take. Heavily clogged filters will need more time for combustion to burn off the particulates and restore optimal filter function.
Additional factors influencing the process duration include regeneration type (Active or Passive), the specific diagnostic tool used, vehicle load and operating conditions, ambient temperature, fuel quality, and overall vehicle performance.
UK Professional OBD2 Tools Online Shop
