If the EGR system is simply removed from the car, but is not turned off from the control unit(ECU/PCM), will encounter one or more of the following problems:
- Lack of power
- Engine Warning Lamp
- Improper engine operation.
We can safely and correctly remove the EGR from the car/truck without having to physically eliminate it.(EGR OFF)
What is and how an EGR works:
In an effort to reduce pollutant emissions, the concept of an exhaust gas recirculation system (EGR) was implemented on diesel cars around 1998, aiming to reduce nitrogen oxide emissions, which contributes to air pollution. Most of the exhaust gases resulting from internal combustion of the engine are eliminated by vehicle exhaust. Some of these gases are diverted through the EGR system back into the combustion chamber for re-combustion. This helps to reduce pollutant emissions to a small extent, but on the other hand it affects the internal combustion of the engine. The exhaust gases of the diesel engine, by their very nature, contain pollutants, including soot in the form of carbon dioxide. By re-introducing the exhaust back into the combustion chamber, the soot will start to deposit in oil and other internal parts, including the turbine and the intake manifold. This can not be good, but it is questionable how bad it is. The cleaner the air that enters the engine, the better it will run and the fewer the problems will be in the long run.