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DPF solutions

A diesel particulate filter (DPF) has the critical job of controlling a modern diesel vehicle’s emissions. Also known as an FAP on some French vehicles, the DFP helps to trap particulate matter (soot) from your vehicle’s exhaust fittings. As of February 2014, all standard MOTs now take a close look at the DPF to make sure the vehicle complies with strict emission policies. It’s worth being aware that the absence of a DPF will usually result in an immediate MOT failure. 

In order to function properly, the DPF needs to be checked and cleaned on a regular basis. Most vehicles have an automatic form of DPF regeneration which involves a catalyst in the system burning off soot at an extremely high temperature, which will normally result in a blast of white smoke from your exhaust. 

But, if regeneration doesn’t happen for whatever reason, a buildup of soot will occur which will affect your vehicle’s performance, pose a fire risk and potentially cause a whole host of dangerous and expensive issues throughout your vehicle. Failed regeneration is most commonly associated with vehicles that don’t get driven at frequent high speeds for sustained periods of time.

WHAT TO DO

If your DPF is struggling, you might notice a corresponding warning light flashing up on your dashboard. Please don’t ignore this - it needs attending to ASAP by a qualified expert. To sort out your DFP, you can consider:

  • DPF regeneration: we can help you organise a full DPF regeneration on your vehicle, with the help of our UK-wide network of technicians. 
  • DPF replacement: if your DPF is beyond repair, we can organise a replacement - usually at a fraction of the main dealer’s costs. 
  • DPF cleaning: it might just need a little TLC  
  • DPF recalibration: if you have had the DPF core removed from your vehicle, we can recalibrate your vehicle’s ECU to switch off any warning lights and prevent the ‘limp home’ reaction, but it’s critical that you’re aware of the legal implications. 
  • DPF removal: in some circumstances (such as in other countries and for motorsport applications), DPF removal is legal. Talk to us about booking your vehicle in. 

EGR 

Exhaust gas recirculation (EGR) is a widely adopted way to reduce NOx emissions from your vehicle. By recirculating a certain proportion of the exhaust back into the intake air, we can create a lower heat release plus peak cylinder temperatures. The recirculated gas can also be put through an EGR cooler to bring down its temperature. However, the downside of the EGR is that its valves can become clogged up with deposits, which can have an effect on how the vehicle runs and even set off warning lights on your dashboard. If the EGR fails, replacement valves are costly and in some cases, an EGR failure could translate to complete engine failure. 

  • At KT tuning, our software-based EGR solution involves disabling the EGR valve and reprogramming your vehicle’s ECU to bring down engine temperatures, improve throttle response and fuel economy, and even prolong the engine’s life. 

 

Talk to KT tuning today about unleashing your vehicles hidden capacities.