The EGR valve is the engine system’s most important set of carburetor valves.
So, the part of NOx emissions generated from fuel combustion can be available further for the cycle of mixing and reusing the gas in the combustion chamber.
However, after a period of use, many users believe this valve part will appear soot interfering with the engine’s performance.
Is it true or not? Can EGR be eliminated or prevented from occurring? The following article will give you an overview of the EGR delete kit.
What Is EGR?
It is a type of exhaust gas recirculation valve. This type of valve will connect to the exhaust pipe and the intake pipe to perform the task of transporting gas for the fuel combustion process. To control, users can use 1 of 2 components, a vacuum or an electric step motor.
The main task of this carburetor valve set is to manage the overall fuel transmission process of the engine. The part of NOx emissions will be controlled and treated strictly during the production process.
Most of these emissions will not move directly into the environment but continue the regeneration process of burning fuel.
As a result, the environmental pollution problems and the greenhouse effect will almost not come from the emissions generated by the engine.
Currently, EGR valves are 5 main types of valves:
- Vacuum-operated valves
- Digital valves
- Diesel high-pressure valves
- Gasoline valves
- Diesel low-pressure valves
All of these carburetor valves perform a standard function of enhancing engine performance. Based on the features of the EGR, several engineers have taken advantage of this valve set to realize the design of gasoline and diesel engines.
As a result, the engine can operate with lower pump loss, higher combustion efficiency, and excellent impact resistance.
How Does The EGR Valve Work?
NOx emissions result from the reaction of nitrogen gas with oxygen at a temperature of about 1379 degrees Celsius. When the engine runs, the combustion process will occur continuously at high temperatures.
Nitrogen makes up 78%, and the inertness of nitrogen will change in the combustion chamber. The amount of NOx produced will depend significantly on the fuel combustion efficiency performed in the combustion chamber.
Previously, older cars would not have a valve. At that time, all emissions will be dischargeable directly into the environment. EGR valves have been added to all engines to limit the impact on the atmosphere maximize fuel combustion efficiency and reduce adverse environmental effects.
At this time, the NOx exhaust gas will circulate back to the combustion chamber, burning at a temperature of about 150 degrees Celsius.
The valve will have three modes: fully open, fully closed, and in the middle. It will close when you start the engine, and power is not needed. The valve will open when your engine runs and travels at low speed. As you accelerate, more oxygen is required, and the EGR valve closes.
What Is EGR Delete Kit?
EGR Delete is one of the ways to upgrade cars that many users do today.
With a special tool kit, you can remove this valve from the operating cycle altogether. This job’s primary purpose is to maximize the amount of oxygen entering the combustion chamber, helping you accelerate well.
However, one question is, where will NOx emissions go? The answer is the atmosphere. This engine upgrade will mean eliminating the engine’s NOx treatment process.
The exhaust gas will not be able to carry out the mixing process for the next cycle but will move directly into the environment.
The negative consequence is that environmental problems will not be solved.
How To Use EGR Removal Toolkit?
Before you begin the removal process, you will need to prepare a specialized kit that includes:
- Boot gauge tap
- Boost tap block off
- Bolts, hose, washers, lock washers
- Hose clamp
- GR pipe
- Barb couplers
Once you have the necessary tools, you can start the EGR delete kit. To do this, you need to follow these steps:
Step 1: Disconnect the power supply
You will only do clearing work when the engine has stopped. If it’s just running, let it cool down before starting it up.
Step 2: Remove the sensor
You will need to remove the MAP sensor from the engine part. Also, disconnect the intake manifold, and remove the air filter and turbo. Remove the clamps you find to help you do this job more efficiently.
Step 3: Disconnect other details
The EGR solenoid will be the part that you need to disconnect. To do this:
- Remove the electromagnetic clamps one by one.
- Pull out the solenoid coil.
- Disconnect by colors including black, red, and blue.
Step 4: Drain the coolant
At this step, you will need to drain one gallon of coolant. Remove the coolant tank cap and remove the coolant lines on both sides.
Step 5: Remove the flange bolt
Step 6: EGR cooler
You need to locate the bolt. It will be found at the rear of the cooling assembly.
Next, take it off. At the same time, you need to loosen and remove the bolt that holds the bracket in place. Remove the cooler manifold to complete the job.
Step 7: Remove the entire lower cooling water line and the rear EGR pipe
Step 8: Install
In this step, your task is to place the turbo reducer plate by putting the middle name on the turbo manifold. Next, lock it in place with bolts.
Step 9: Replace the cooling tube
Connect the cooling pipes and their clamp using the pre-prepared kit to get started. Do the same with the water lines above; attach the line to the block holder.
Step 10: Finishing
It is the final step in the removal process. You need to reset all previously removed parts. Observe all aspects to make sure they are still in good working order. In particular, check the cooling system, do not let any coolant that may leak to the outside.
EGR Delete Benefit
Clean the exhaust system
The first benefit that you can quickly notice is cleaning the exhaust system. Because after a period of use, the board will accumulate much soot that clogs the fuel transmission system.
Then, removing EGR is an effective solution to help you prevent this phenomenon from happening as much as possible. The running air is cleaner and prevents soot from traveling to the engine and combustion chamber.
Increase fuel efficiency
The clean exhaust system is the premise for a more efficient gas and fuel mixture transmission. The engine can operate smoothly in continuous time, and fuel efficiency is also increased by about 20% compared to using the EGR valve.
Reduce engine heat
When the valve exists, the engine must work harder to compensate and overcome the blockage. So bypassing EGR is a way for your engine not to have to do that work. The phenomenon of engine temperature rise will no longer be, but it will always remain at a stable speed and temperature.
More horsepower is one of the benefits of removing the EGR. At that time, the soot part will not appear, allowing maximum horsepower to be for the engine. In addition, most gas reactions can be improved by full oxygen flow.
Can You Reset The EGR After It’s Cleared?
You can completely reset the EGR. However, this job is not as simple as you think. It requires you to prepare and replace a lot of details.
If you do not have too much experience in this area, reinstalling the valve won’t be easy. Instead, you can ask for the help of technical staff.
This work is quite time-consuming and can cost more than $1000. For some people, this number is not so small that they can decide in a short time.
Is EGR Deletion Illegal?
EGR removal is illegal in all states because it seriously affects the living environment, causing the greenhouse effect.
The valve part has the main task of coordinating NOx emissions back to the combustion chamber to perform the next fuel combustion cycle.
When this valve set is no longer available, NOx gas will move directly to the environment through the exhaust system.
Therefore, any operation to remove the EGR valve would be against the law. It will subject you to penalties depending on the severity. In addition to you, those who indirectly remove the EGR valve for you will also be penalized.
Removing the valve has brought a lot of benefits to the engine, especially the removal of soot. It helps keep the air conduction process stable, and the engine temperature does not rise too high.
However, the most significant limitation is that the environmental pollution caused by NOx emissions will not be able to be solved because all NOx will be discharged directly into the environment. It is the leading cause of air pollution and the greenhouse effect.