Does Removing EGR Improve Power? [Advantages and Disadvantages of EGR]

Last Updated on February 15, 2023 by Leepu Da Maxim

“EGR” stands for “exhaust gas recirculation” and removing EGR can improve the power for certain types of engines but it is not a good practice. EGR is only activated while the engine is in part throttle or cruise mode, so it does not affect reaction or power for most engines.

Key Takeaways

• EGR does not affect the engine’s performance, MPG (Miles per Gallon), or power; it’s strictly an emissions technology
• An EGR valve recirculates a precise amount of exhaust gasoline into the engine intake system to reduce emissions, boost efficiency, and reduce fuel consumption
• An EGR lowers the temperature of the combustion process and reduces NOx emissions
• Removing EGR will increase the carbon build-up in the intake manifold and it will reduce the engine’s performance and increase the maintenance cost

Advantages of Installing Delete Kits or Removing EGR?

If your automobile has an EGR valve, you’re dealing with low power and poor throttle response. Without sacrificing engine life or fuel economy, an EGR delete upgrade offers you the feeling of increased power and improves throttle response.

Most Diesel Engines Can be Fitted with the Kit Easily

Most diesel engines have an Exhaust Gas Recirculation valve, which accumulates a lot of soot with time. This development prevents proper airflow into the engine and increases the chance of reintroducing a deposit. 

This valve will be bypassed by installing the delete removal kit, allowing the motor to regain power. 

With an EGR Removal, you can Enhance the Fuel Efficiency Effectiveness of Your Fuel

When you restore the power of your diesel engine, you’re also improving its overall fuel efficiency. When you apply an EGR deletion kit, the exhaust gas gets directed away from the engine, causing it to run cleaner. This increases efficiency while decreasing the likelihood of a diesel particulate filter failure. 

If you choose this product option, you may see a 20% increase in fuel economy while also extending the engine’s life.

The Temperature of your Engine can be Reduced Using EGR Removal

The exhaust gases cycle more often in the EGR system when the coolers get clogged with soot. As a result of the obstruction, temperatures surrounding the engine rise. 

Lower exhaust gas volumes are created when this design component is bypassed, resulting in a lower engine coolant temperature during the performance.

Modified Diesel Engines Can Use the Delete Kit

The EGR system clogs up on modern diesel engines exactly like non-modified ones. The removal kit will produce the same results no matter what engine one chooses for their vehicle. Most owners find that the EGR delete removal kit solves their performance issues while improving their gas mileage.

For Some Cars, the Kits Might be Relatively Economical

There are some inexpensive EGR deletion kits on the market. Although this product choice will not address the bigger, newer types of diesel that are having issues, little passenger cars will benefit from it.

Another option is to disable your EGR through the tuning procedure. One won’t even need to disconnect the unit if one handle things this way. This makes the job much easier, lowering the chances of things going wrong. 

Although this option is an “EGR deactivate” rather than delete, it still works.

It’s a Safeguard against DPF Failure

The diesel particulate filter (DPF) efficiently catches all of the soot from your diesel engine’s exhaust, but it has a limited capacity. The soot must be evacuated or burned regularly to regenerate the filter.

Nonetheless, because the EGR valve is primarily designed to reduce nitrogen oxide emissions, it can induce DPF failure. The carbon dust in the exhaust gases clogs the system as a result.

The EGR valve and the engine do not function correctly when the system is clogged.

This could result in decreased fuel economy and increased carbon dust output, clogging the DPF. On the other hand, an EGR delete kit minimizes the amount of soot produced and lowers the risk of a DPF failure.

Boosts the Engine’s Performance

Your vehicle can function smoothly without overheating or needing to work harder if the heat combustion in the engine is reduced.

Therefore, you’ll enjoy increased engine power while maintaining your current fuel economy.

Disadvantages of EGR Delete Kit

Many individuals don’t know that removing an EGR system may save you money on repairs. They can, however, cause serious problems in other components of your engine.

An EGR Delete Kit Can Raise the Temperature of your Exhaust Gas

Diesel engine exhaust gases are frequently cooled before being recirculated back into the system. The exhaust remains hot when disabled; this function is with an EGR deletion kit. Depending on the vehicle, this might cause the exhaust gas temperature to rise, lowering the cooling system’s overall efficiency.

There is no way to eliminate the contaminants since the gases stay in the engine, which increases the danger of oil fouling. An EGR valve replacement may be more advantageous for some engines than this kit.

It Doesn’t Stop the EGR Network from Being Stuck Open

You can exploit the situation when the coolers or valves are blocked by using an EGR delete to circumvent the system. If the platform is locked in the “open” position, the engine will still struggle to start for some users, which is another way EGRs might fail. 

You’ll see the car striving to stay engaged when you’re idling with it. An EGR elimination kit will not assist if your vehicle operates well at high speeds or RPMs but struggles while parked.

It Has the Ability to Reduce Your Overall Horsepower 

EGR deletion kits are usually considered when running an older diesel engine. A design defect in the prior generation of goods permitted a bypass to enhance the volume of clean air in the combustion chamber. You may have a more efficient power supply and improved air quality.

 Modern diesel engines may find it hard to take advantage of this design change, so you may have less horsepower to work with instead of more when utilizing this product.

Your Engine May Begin to Knock

When employing the EGR deletion, certain engines may begin to knock once the change is complete. This issue is partly caused by a shift in the engine’s temperature profile. You might also create a knock because the oil quality that passes through the engine deteriorates faster than usual. 

If this issue is not resolved, your engine’s wear and tear may increase, reaching the end of its life expectancy sooner than expected.

With a Blocked Valve, You Can Make Your EGR Delete

One can produce an EGR delete without buying a kit if your EGR valve is already blocked with soot. Some dealers prefer to keep the valve rather than use the deletion kit. Although most owners notice few negative consequences when using an EGR deletion kit, there are no genuine performance benefits for the average engine.

References:

https://greengarageblog.org/13-egr-delete-pros-and-cons

https://www.e90post.com/forums/showthread.php?t=1640287