Can you disable DEF system?

You can simply have a tuner turn off the DEF system and you will no longer use any. No need to remove any pipes or EGR.

Can you run your diesel without DEF?

SCR Systems Modern trucks will not run without the DEF. Hence the need for diesel truck owners to check their fluid levels frequently. Reducing emissions should be everyone’s goal. Maintaining your vehicle would also reduce emissions and DEF consumption.

Can DEF be removed?

A diesel delete involves taking out the DEF system, removing the catalytic converter and DPF, and installing a new exhaust. The vehicle’s ECU (engine control unit) will also have to be reprogrammed using a tuner. After a diesel delete is completed, the soot-clogging issues are eliminated.

What happens if you delete the DEF system?

A DEF Delete Service for your Cummins, Duramax, or Powerstroke diesel engine from Revolution Motors will remove this system so your truck is running at peak efficiency and performance. Trucks with the DEF delete install can improve fuel efficiency by up to 30%.

Are DPF deletes illegal?

Well, according to Section 203 of The Clean Air Act, it is illegal to tamper with, remove or be involved in the deletion knowingly or unknowingly of the DPF system of a truck. Furthermore, it is also illegal to use a DPF removal service provider to do this for you.

Can you use water instead of DEF fluid?

Subject: RE: Anyone replace DEF with water? Water won’t hurt the system but it will de-rate you pretty quick. ECM compares NOx values pre/post, if conversion is low it will start throwing codes and will eventually derate.

What happens if I don’t use DEF?

If the truck is allowed to run out of DEF the engine’s power is reduced, a solid red warning will be displayed and the vehicle speed will be limited to 5 mph until the DEF tank is refilled.

Is it illegal to delete DEF?

DEF tampering is illegal, yet it happens. That caused some operators to want to get rid of the DEF systems, or get DEF delete kits to get away from using it.” Tampering with a DEF system can put someone on the wrong side of the law, but that’s not the only risk involved.

Is DPF Removal illegal?

While it’s not illegal to remove a car’s DPF, it is illegal to drive without it if one should be fitted. 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.