Monday, October 26, 2020

Maslak Diesel Particulate Filter Troubleshooting

What Is a Diesel Particulate Filter?

Diesel particulate filters (DPF) are found on some Euro 4 and all Euro 5 and Euro 6 vehicles as part of meeting emission standards.

The filter has a honeycomb structure and can capture harmful solid particulates in exhaust gas. Over time the trapped content increases and can cause clogging.

A pressure sensor measures soot remaining in the DPF. When a critical soot level is detected and conditions are suitable, regeneration starts.

In some cases the vehicle cannot complete regeneration and soot levels prevent efficient engine operation.

The DPF warning may then appear on the display. When it does, the vehicle should be driven at steady speed and higher RPM for a period. On automatic vehicles this can be done by selecting manual mode.

When driven at higher speed, the engine management system sends more fuel and raises exhaust temperature. At around 600 °C regeneration begins and solids burn into ash.

Sometimes this process fails; the DPF or engine fault light stays on and the vehicle loses power. In that case, service and repair with a diagnostic tool is required.

What Causes DPF Clogging?

Low-quality fuel, prolonged low-speed stop-start driving, long idling, and incorrect oil specification.

Even with regeneration, if precautions are not taken, DPFs on newer diesel vehicles will foul and may need replacement.

How Are Faults Resolved?

Diagnostic tools we distribute nationwide can help reopen a clogged diesel particulate filter.

Launch or Autel devices are highly successful for DPF work and also support fault code read/clear, detailed inspection, live data, ECU mileage, EPB service mode, service resets, steering angle reset, injector coding, transmission coding, adaptation and more.

You can also clean the filter with the DPF Clean Pro cleaning machine while preserving emissions and original values.

For detailed information, please call us:
0850 755 02 30