2023-03-30 by UDIAG
What Is a Diesel Particulate Filter?
A Diesel Particulate Filter (DPF) is a device that is installed in the exhaust system of diesel-powered vehicles to reduce emissions of particulate matter (PM) or soot. It works by capturing and storing the soot particles produced by the engine, and then periodically burning them off through a process called regeneration.
The DPF is made up of a ceramic or metallic honeycomb structure that contains a series of channels or passages that trap the soot particles. As the exhaust gases pass through the channels, the soot particles are trapped on the walls of the channels, while the other components of the exhaust gases pass through and exit the filter.
Over time, the buildup of soot particles in the filter can cause a reduction in engine performance and fuel economy. To prevent this, the DPF periodically goes through a process called regeneration, which involves raising the temperature of the filter to burn off the trapped soot particles. This can be done passively, where the normal operation of the engine produces enough heat to trigger regeneration, or actively, where additional fuel is injected into the engine to raise the temperature of the exhaust gases.
DPFs are an important component of modern diesel engines, as they help to significantly reduce emissions of particulate matter and meet increasingly strict emissions regulations.
What Are the Symptoms of a Blocked Diesel Particulate Filter?
A blocked Diesel Particulate Filter (DPF) can cause a range of symptoms that can affect the performance and reliability of a diesel-powered vehicle. Here are some of the most common symptoms of a blocked DPF:
- Reduced Engine Power: A blocked DPF can cause a reduction in engine power, as the exhaust gases are not able to flow freely through the filter.
- Decreased Fuel Economy: A blocked DPF can also cause a decrease in fuel economy, as the engine has to work harder to push exhaust gases through the filter.
- Warning Lights: Most modern diesel vehicles are equipped with a warning light on the dashboard that indicates when the DPF is getting clogged. This light is typically shaped like an engine or has the word “DPF” on it.
- Increased Exhaust Smoke: A blocked DPF can cause an increase in exhaust smoke, as the trapped soot particles are not able to burn off properly.
- Engine Misfires: In severe cases, a blocked DPF can cause engine misfires or even engine damage, as the excess back-pressure can cause exhaust gases to flow back into the engine.
If you are experiencing any of these symptoms, it is important to have your vehicle inspected by a qualified mechanic to determine if the DPF is the cause of the problem.
UDIAG Scanners with DPF Reset Function
Diesel Particular Filter (DPF) scan tools help perform forced DPF regeneration service and clear DPF warning light. Here are several multifunctional scanners with DPF reset function recommended.
UDIAG A550 is the most advanced and multifunctional scan tools. It is specially designed for professional technicians and work shops to service individual specialized systems, such as over 100 car makes, 40+ maintenance functions.
UDIAG A300 can access Engine, Transmission, ABS, and SRS systems for the best diagnosis operations. Loaded with main maintenance functions in the market, such as DPF, EPB, SAS, TBA, SRS, TPMS, and ABS. It utilizes a 4.3-inch LCD screen and easy-to-use keys to make the diagnosis faster and easier in workshops and garages.
UDIAG A200 is a multi-system scan tool which is suitable for single car make, delivering all system diagnosis for cars, and making diagnosis speed and accuracy.
For more UDIAG OBD2 scanners with DPF function and more detailed information, please don’t hesitate to contact us.
