Tight emissions set by the EU have forced manufacturers to look at ways to improve emissions and an Exhaust Gas Recirculating Valve or EGR was born as one way to help achieve this. Unfortunately, the manufacturers were forced to make a compromise, fit an EGR valve to reduce the emissions of the vehicle, but compromise on the efficiency and reliability of the engine.
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What is an EGR Valve?
Within modern, diesel internal combustion engines, Exhaust Gas Recirculation (EGR) is a method to control Nitrogen Oxides (NOx) emissions, produced as a byproduct during the combustion process. Air from the environment is mostly a combination of Oxygen and Nitrogen. When the air combines with fuel and ignites inside the combustion chamber, temperatures increase and produce NOx emissions.
The EGR system works by returning a small portion of an engine’s exhaust gas to the engine’s combustion chambers through the intake manifold, lowering combustion temperatures and therefore reducing the amount of NOx emitted.
The EGR valve is the main component of the EGR system and it’s normally closed. It connects the exhaust manifold to the intake manifold and is controlled by either a vacuum or a built-in electric step motor. The function of the EGR valve is to control the flow of exhaust gas being recirculated depending on the engine load.
EGR Removal & Bypass Benefits
Many customers are already aware of the negative effects the EGR valve has on performance or the customer has an EGR valve that is failing or failed completely and is need of a solution which doesn’t involve a costly replacement.
We can offer a solution in the form of an EGR deletion which is where we can remap your car so that the EGR and its operation no longer exist.
Removing/Deleting the EGR Valve will result in the following;
- More Power
- Better Fuel Efficiency
- Less Flat Spots
- Improved Throttle Response
- Less Maintenance Costs
- Cleaner Intake System
- No Effect on MOT (NOx is not tested during a diesel MOT test)
We can carry this procedure along with one of our remap services or we can arrange for this job to be completed independently. We offer excellent discounts for this to be completed along with our remap service and you will also get the added benefit of increased performance if completed at the same time.
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