DD15 DPF Delete Problems And How To Fix Them

Are you concerned about some DD15 DPF delete problems?

Many vehicles are now fitted with new technology and features to ensure optimum efficiency and performance. Among these components is the DPF or the diesel particulate filter. What this does is to filter soot, which is contained in the compartment located in the exhaust system. Once the compartment is full, the vehicle goes through a regeneration cycle that burns the soot with the use of fuel.

This is a means of minimizing air pollution, which is why a DPF is essential for environmental reasons. However, there are some risks that come with it. For instance, the DPF limits vehicle power and fuel economy. Moreover, when there is a clog to the DPF, this prevents it from functioning properly, which also impacts the engine health and performance.

When you have a faulty DPF, you need to have it deep-cleaned and checked by specialists. This can be a very expensive thing to do, which can cost several hundreds of dollars. Furthermore, your vehicle will be unavailable for use while it is being cleaned. This is why there is some downtime involved.

With that being said, there are some people who consider having their DPF deleted to free themselves up from these inconveniences and massive expenses. But is it worth it? And what are the potential problems involved? Keep reading to learn more.

dd15 dpf delete problems

DD15 DPF Delete Problems You Never Knew

When you do a DPF delete to your vehicle, it configures the system, allowing it to operate even with the absence of a DPF. There are various DPF kit types you can find out there, but many of these include an exhaust and a tuner. What the exhaust does is to fully replace the DPF, while the tuner disables the software and configures your engine codes.

The problem arises when you have a DPF delete done, which is incompatible with your vehicle’s system. Moreover, it is important that the mechanics who work on this task are experienced in it. There are risks of tampering with your sensors as the system is encoded. Hence, several issues can arise, which can impact the performance of your vehicle.

As we have mentioned earlier, there are many reasons why some people choose to have a DPF delete done to their DD15. For instance, they want to improve their fuel mileage, since it does help to cut the costs of fuel down. When you have a clogged DPF, this reduces the fuel flow, which impacts fuel economy.

Moreover, a clogged DPF negatively impacts the airflow, which leads to a delay in your exhaust process. Thus, power and engine performance are both affected. But by removing your DPF, this promotes a smoother flow of the fuel into your engine, improving the pressure and power generation. As a result, your engine horsepower is increased.

There are also some costs involved with the DPF getting clogged. For instance, regular checks and professional cleaning are required to ensure the optimal operation of your DPF. Over time, the maintenance cost can get quite steep, so there are some people who choose to get the DPF removed completely to eliminate these costs.

But it is not too easy to simply go to any mechanic who can remove your DPF. Removing this component is critical since the ECU must be checked and need to be protected to avoid encountering further issues. 

Also, a DPF delete is considered illegal in many countries including the United States and the United Kingdom. This is prohibited, and you can get fined for having this done to your vehicle. 

While there may be benefits involved with a DPF delete such as the ones we mentioned above, there are some drawbacks to consider including:

  • Reduced overall horsepower
  • High price of a DPF delete, which is almost similar to what you pay for a DPF installation
  • Legal consequences such as fines or worse, some jail time

Additional Points To Consider

Without a doubt removing your DPF can increase the reliability of certain parts of your vehicle since it obstructs the exhaust and then dilutes your air and fuel ratio in the engine, which is why you can expect to boost engine power by removing the DPF. 

Plus, a DPF delete also increases the reliability of your vehicle and minimizes some issues such as engine overheating and exhaust clogging. But do keep in mind that by removing the DPF, you cannot simply expect to notice a significant improvement to your vehicle. And no, it will not supercharge the performance by just taking the filter out from the exhaust. 

This is why you need to think about the possible consequences of a DPF delete for your DD15. It is not a very simple and quick task as there are complications involved. Your onboard computer or the ECU locks your vehicle into limp mode and checks if it can sense any defects to the DPF.

When you have removed your DPF, there is also a legal impediment involved. The DPF is fitted to your vehicle to make sure you are complying with environmental regulations involving exhaust gasses. So, there are legal concerns surrounding this task, which is why it is best to think carefully before getting it done.

But there is one thing you can do if you think the DPF is slowing your vehicle down. For example, there is an ECU remap that can be done for improving the performance of your vehicle. By reprogramming the ECU, it enhances power and efficiency – and it is legal.

Read More: Maintenance Required Vehicle Ecu – What It Actually Means


Although it can get tempting to have the DPF removed because of some benefits involved, it is still best to analyze your options carefully since this component is important in the control of diesel emissions. It is also required legally in many countries, so you run the risk of getting fined or having some legal charges by doing a DPF delete.

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