The expediency of turning off the egr valve is always a relevant question. Many find this positive. It is worth deciding in each individual case. It is better to trust this to a specialist who has the necessary equipment and an understanding of the procedure.
What is an EGR valve?
The EGR valve is part of the exhaust gas recirculation system, which regulates their supply to the engine intake tract. This system is used in both gasoline and diesel engines.
The principle of operation of the system is that part of the exhaust gases is supplied to the intake manifold, and they again participate in the working processes. This lowers the temperature in the combustion chamber and also reduces the emission of nitrogen oxide.
Malfunctions in the EGR valve cause unstable operation of gasoline engines at idle and a decrease in diesel power.
In order for the valve not to disturb, you can programmatically disable the egr.
Signs of a malfunctioning EGR valve
Burning fuel leaves soot and deposits, which can lead to jamming of the EGR valve. Worst of all, when this happens in its open state, particles can get right into the cylinders.
However, the recycling system initially has its resource. You can understand that it is not functioning correctly by the following signs:
- black smoke;
- unstable rpm;
- increased fuel consumption;
- the increase in speed is jerky;
- Perceptible loss of power.
They only think about disabling the egr system when such symptoms occur. Experts recommend at the same time to figure out what caused the valve malfunction.
Arguments to disable the USR system
Disabling the USR without fail makes sense with a mileage of over 100 thousand km, when the system no longer has the desired environmental effect, and it has a negative effect on the engine. It is also jammed in the event of a malfunction, regardless of the mileage. Otherwise, the vehicle will be forced to work in emergency mode.
What does disabling the egr give – arguments “for”:
- with a software shutdown, which provides for certain reconfigurations of the system, it is possible to increase the power and efficiency of the vehicle;
- for heavily worn engines, removing the egr valve will be an opportunity to extend the period of operation;
- better fuel combustion;
- torque improvement;
- amplifying dynamics.
The price of turning off the egr depends on the complexity of the work, the type of specialized equipment and the type of control unit.
Proper software shutdown of EGR
There are two ways to turn off the EGR valve – physical and software. The first is inferior in that it does not ensure the full operation of the engine, because the system can regard the removal as a breakdown and go into a limited emergency mode.
The correct software shutdown of the egr valve is performed by flashing the entire software of the control unit.
Tips are available on the net on how to do the procedure yourself. However, you should not start this without the appropriate knowledge and skills. Each vehicle has its own differences and nuances.
Service specialists have not only practical experience and knowledge, but also special equipment and tools. Therefore, the procedure will be performed with the highest quality.