DPF & EGR Removal

DPF Removal

This is the removal of a vehicles diesel particulate filter (DPF).

In 2009, the 'Euro 5' exhaust emissions standard was officially introduced for all new vehicles. To comply all manufacturers started adding DPF filters to future vehicles. These reduce carbon emissions by filtering out diesel particulate (soot) which would otherwise end up in the atmosphere.

Pre 2009 vehicles did not require the filter however many older vehicles still have one because manufacturers started adding them in anticipation of the upcoming standard.

The filter works by trapping solid particulate matter from exhaust gases and then removing it through a process called 'regeneration'. This involves burning the soot to very high temperature to destroy it. This helps manage the waste however over time regeneration can lead to a build-up of residue within the system which can have a serious affect on the vehicles performance, maintainability and serving costs. This has led to some diesel vehicle owners opting to remove it.

Benefits of DPF removal include:

  1. No expensive DPF replacement costs
  2. No limp mode (usually occurs when the vehicle needs to carry out forced regeneration)
  3. Better fuel economy thanks to better engine airflow
  4. No DPF bottleneck resulting in greater performance
  5. Cheaper maintenance costs
  6. Opens up the ability to use bio fuels

In simple terms our DPF remap switches off the functionality of the DPF ensuring it never attempts to regenerate again. What is required is that the DPF filter is removed from the centre of the exhaust core ensuring all sensors are still in place and functioning. When finished, the DPF still looks to be in situ with all of its sensors operational, just not DPF trap and no regeneration problems.

Performance tuning specialists Manchester DPF removal delete

EGR Removal

Exhaust Gas Recirculation (EGR) removal/ bypass involves disabling the functionality of the EGR valve to resolve any related running issues.

It is an emissions control device designed to reduce NOx emissions. The EGR Delete and EGR bypass software is designed to remove the functionality of the EGR valve and ensure it removes the running issues associated with these devices.

Because the EGR valve is constantly working with burnt exhaust gases they naturally have high soot content. The soot causes a build-up of carbon deposits around the valve which over time impedes its operation e.g the valve has a tendency to stick in various positions. For full engine performance the EGR valve is closed. This creates a closed loop environment for the turbo system to pressurise. However a problematic EGR can create an open loop environment and as a result can cause boost issues along with huge reductions in power and also fuel economy.

Benefits of EGR removal include:

  1. No expensive EGR replacement costs
  2. No limp mode
  3. Restored engine power
  4. Better fuel economy
  5. Cleaner emissions as a faulty EGR generates more soot
  6. Helps prevent DPF failure
  7. Cheaper maintenance costs
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