Once the physical filter removal has been completed the ECU (Electronic Control Unit) is reprogrammed (Remapped) and any DPF related structures removed from the vehicles software. This will prevent the vehicle from sensing the missing filter and will prevent future DPF regeneration and DPF related warning lights.
If a filter has been removed, the car will fail its MOT. Removing the DPF will sometimes cause the warning light to glow – and this itself is an MOT failure point: no dashboard warning lights should remain on during the test.
Although it is not illegal to remove a DPF filter form your vehicle, it is an offence under the Road vehicles (Construction and Use) Regulations (Regulation 61a(3))1 to use a vehicle which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet.
If you are thinking about deleting your truck, please reconsider. The main reason is that, first and foremost, it is highly illegal. Removing any emissions device on a diesel engine or adding a non-SMOG-compliant product carries a punishment of up to a $5,000 fine per unlawful part installed.
Is it illegal to remove a diesel particulate filter? Yes, it is illegal. Owners face fines if caught and removing a DPF can also invalidate your car insurance policy.
DPF deletion does not affect vehicles' engine performance, power generation and horsepower. It can improve performance by freeing up space in the engine bay and reducing weight. However, there are some potential drawbacks to consider before going ahead with a DPF delete.
From an economy standpoint, deleting the DPF will increase your economy, as we said above, it injects raw fuel into your exhaust to complete the regen.
In many cases, a proper DPF delete will result in gaining over 100 horsepower while improving your fuel mileage and the lifetime of your vehicle. Ask us about a Ford 6.4L DPF Delete Service, or service for your GMC, Dodge, or Chevy truck.
Although MoT tests require diesel cars to have a DPF, this is checked via a visual inspection rather than emissions analysis. Removing the filter doesn't affect the car's performance, and some motorists even state they achieve better fuel economy and engine performance without one.
The average cost of a DPF delete is £250 without any additional operations. If you want to have the DPF properly removed from your car, you will have to spend at least £500 more on top of that, and set aside an extra £200 – £250 for the ECU remap and recalibration.
As a guide the average vehicle will cost £469 for the complete process which includes the physical removal of the DPF filter and engine ecu remap to re-calibrate the engine management system. We are able to offer a DPF solution on Taxis (London Taxis International, TX4).
The extra power is gained my these methods are a result of extra fuel and turbo pressure being fed into your engine. A side effect of this is that your engine will run richer, creating more far more soot and diesel particulate (PM) which will could clog the DPF at a much faster rate.
DPF, especially when clogged, affects airflow and causes delays in the exhaust process. Additionally, it affects the overall engine performance and power. When you remove the DPF, fuel flows better into the engine, boosting power generation and pressure. DPF delete is a sure way to increase engine horsepower.
DPF removal is quite straight forward. We simply remove the DPF from your vehicle's exhaust system and disable any DPF functions on your ECU. All of these steps are reversible should you wish to re-fit the DPF in future.
You may also void the customer's insurance policy in the event of an accident, as the police report would find that the vehicle has been tampered with and is deemed un-roadworthy. Vehicles with time or kilometer-based regenerations that have not been tuned will try to regenerate even though there is no DPF present.
A blocked DPF can force exhaust gas through the smallest of gaps, including the clearances in the bearing housing VNT lever arm and turbine housing waste gate mechanisms. If this occurs, carbon build up in these mechanisms can restrict movement of the levers affecting performance of the turbo.
Heat the engine
The easiest and cheapest method of DPF filter cleaning is by driving the vehicle for a long-distance at high revs per minute.
We can completely remove the DPF filter and delete the DPF programming from your cars electronic control unit (ECU). Once the DPF Delete has been carried out any related warning lights will disappear and regenerations will cease completely.
Due to the extensive reliability issues that an EGR can cause, people take it upon themselves to make modifications to the EGR. You should know that any of these modifications are illegal, and the fines if you are caught are significant.
Firstly, if you don't have the software to enable the car to function without the DPF it won't run at all. That said if you have the software to do so, yes your car will smoke, possibly a lot of smoke. But you will also likely get a modest bump in fuel economy and power (or throttle response).
While your vehicle won't stop running the moment the light turns on, continuous driving can lead to more severe issues like decreased fuel efficiency, reduced performance, and in the worst case, engine damage. An illuminated DPF light will cause an MOT failure.
Benifits of removing the EGR Valve
The EGR Valve CANNOT be removed on vehicles that still have the DPF Filter present, doing so would soon block the DPF.
It is illegal to remove or delete your DPF. Your vehicle has been designed by the manufacturer to operate with a DPF system. It is illegal and also voids the manufacturer's warranty and Australian consumer law protections. Removal or deletion of your DPF may also impact vehicle insurance claims.
Absolutely, as long as you are not expecting a big power boost. Since the DPF itself is a major restriction point in the exhaust system, and the factory system forward of the DPF needs to remain in place, you will not get the power increase you would expect from a full turbo back system.