Why remove dpf

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A DPF Delete also offers smoother acceleration and lowered exhaust gas temperatures. You could improve your fuel economy significantly, which is great news. Many of us are concerned about saving money in this day and age and a DPF delete will begin to prove its worth straight away. You may also be able to switch to more economical engine oils. DPF blockages can be frustrating to deal with and the cost can build up over time.

In order to bypass these problems forever, a DPF delete will be an ideal option for you. Following removal, the software needs to be removed from the ECU of the car so that the active and passive regeneration cycles, and any other DPF functions are no longer in operation.

This can be done via removing the ECU and programming it on the bench or flashing it through the OBD socket inside the car. For many people, removing the DPF from the exhaust system will be because they have experienced problems with the unit itself. Many filters become clogged as a result of them failing to regenerate and therefore display warning lights on the dashboard and in some cases limiting engine performance.

We can usually remove the DPF from your vehicle for a fraction of that price. For this reason we would only ever recommend removing the DPF from your vehicle if your vehicle is not used on UK roads i. Petrol vehicles are subject to an emissions test, during this test the exhaust gasses and lambda readings are measured and recorded.

During the diesel smoke test the opacity of the smoke is tested, the exhaust gasses are NOT measured or recorded. A DPF is designed to filter out soot from diesel exhaust gasses, therefore a DPF will reduce the opacity of the smoke.

So why does a car not fail the smoke test if the DPF is removed? Removing the DPF will not cause the opacity level to rise high enough to fail, in fact, it is very difficult to get a diesel vehicle to fail an MOT smoke test, the fail mark is very high. Why is the fail mark so high? Well this is quite simple, the fail mark is not on a per vehicle basis, i.