What happens if you delete EGR valve?

In reality, properly deleting the EGR has minimal impact on the vehicle and can even be advantageous for its  performance. However, from an environmental standpoint, it leads to increased exhaust emissions, which is perhaps its most significant drawback. Next, I'll explain in a Q&A format: What happens if you delete the EGR valve?

How much HP does EGR delete add?

Well, not much, maybe just 0-5 extra horsepower. Deleting it isn't about making your car faster, though. It's more about fixing engine issues, keeping things cleaner(reducing carbon buildup), and maybe saving a bit on gas. If you're looking for a real boost, think about a proper DPF delete, which can give you over 100 extra horses and save you fuel.

Does EGR delete reduce engine life?

Yeah, it could.

Taking out the EGR system might make things hotter inside the engine. That could mean more stress on the parts and make them wear out faster. To deal with this, you might

ECU Re-calibration: Optimizing the fuel/air mixture ratio and ignition timing by readjusting the engine management system may help reduce the adverse effects of high-temperature combustion on the engine.

Enhanced Cooling System Components: Installing high-efficiency cooling systems, such as larger radiators or improved water pumps, can lower engine temperatures, thereby reducing the potential negative impact of high-temperature combustion.

Optimizing Air-Fuel Ratio: Adjusting the air-fuel ratio more effectively controls combustion temperatures, reducing the likelihood of overheating. However, this requires expertise and precise tuning to avoid engine instability or other issues.

Consider Additional Cooling Aids: In specific cases, adding supplementary cooling devices like liquid-cooled oil coolers might help decrease engine temperatures and mitigate the effects of high-temperature combustion.

Routine Maintenance: Regularly changing oil and filters, keeping the cooling system clean, and performing periodic inspections are crucial steps in maintaining engine health.

Also, removing the EGR can reduce the gunk building up in the intake system, but it might make other places dirtier, like the valves.

Dealing with carbon build-up in the intake system due to EGR removal can be managed through:

Regular Cleaning and Maintenance: Consistently cleaning the intake system components is crucial for managing carbon build-up. This includes cleaning the intake ducts, cylinder heads, pistons, valves, and related parts. Using suitable chemical cleaners or mechanical methods for cleaning can significantly reduce carbon build-up.

Use of Fuel Additives: Certain fuel additives specifically designed for cleaning diesel engines can aid in reducing carbon build-up. These additives work to minimize the formation of carbon residues during the diesel combustion process.

Mechanical Cleaning or Refurbishment: In severe cases where carbon build-up significantly affects engine performance, mechanical cleaning or refurbishment of specific intake system components such as intake manifolds, pistons, etc., may be necessary. This process requires professional skills and equipment.

Is it OK to drive without EGR valve?

Of course, if the check engine light illuminates or emission-related codes appear, resolving these issues is usually not difficult. Using a DEF tuner can resolve system errors.

Will EGR delete cause black smoke?

An EGR delete might lead to black smoke emissions, excessive black smoke could indicate other issues with the engine's fueling or air delivery systems.

Under what circumstances should I delete the EGR valve?

Under conditions where a vehicle has traveled tens to hundreds of thousands of kilometers, signs of frequent blockages and aging often emerge in the EGR (Exhaust Gas Recirculation) system. Symptoms may include unstable idling, stalling, flashing check engine lights, consistent failure in emission tests, oil combustion, and the emission of blue smoke from the exhaust.

I came across a forum post where an owner of a 2016 LML 6.6 Duramax with 75,800 miles was considering the removal of the DPF (Diesel Particulate Filter) and EGR primarily to address blockage issues.

 

duramaxforum post1
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If it's just the EGR that's clogged, one can opt for chemical cleaners to dissolve the blockage or manually remove the EGR for cleaning using automotive cleaning agents and brushes. The former might not guarantee a thorough cleaning, and the latter is time-consuming, leading to periodic cleaning and maintenance.

However, in more severe cases, aging or faults may occur in the EGR and related pipelines, filters, or sensors, requiring timely replacement to avoid impacting the vehicle's performance.

Hence, some car enthusiasts consider using an EGR valve delete kit. During this process, there are concerns about emission compliance and ensuring the system defaults to normal functioning without errors. Not to worry about the hardware or software modifications—automotive shops offer various solutions for these issues.

If you own a 2018 L5P 6.6 Duramax and plan to delete the EGR, here's a l5p delete kit of you'll need.Click on the image below for direct shopping.

 

 it's not just about removing the EGR; it also involves eliminating DPF, DEF, and other emission-related components.

Typically, when you remove the EGR and DPF or conduct other hardware modifications, you can't overlook the issues at the system or software levels. Once modifications are made, the system will flag errors or provide warnings. An L5P Duramax tuner is specifically designed to alter the engine's electronic control system, adjust performance parameters, and deactivate emission-related functionalities.

EGR delete kit

From an EGR delete kit, it's evident that EGR deletion isn't irreversible damage. If not sealed off for a prolonged period, the deletion kit can be removed, and even if the EGR is faulty, removing the damaged EGR along with the delete kit allows for a full replacement with a new EGR. This won't affect much.

Why delete EGR?

Under normal circumstances, a 2016 L5P 6.6 Duramax can typically run hundreds of 100000 miles without issues. Some owners reported needing major repairs or partial replacements around the 200,000-mile mark, while others required significant maintenance after more extended periods of use. When your vehicle approaches this stage, there's no need to worry about long-term effects of modifications.

As of now, there isn't an effective solution for passing emission tests. So, if your vehicle is running fine, you're not just idling by; you're trying to prolong the worsening of the EGR. There isn't much to do practically, but adjustments can be made based on individual circumstances.

Driving Conditions: Frequent city driving, short trips, or low-speed driving can lead to quicker carbon buildup and residue in the EGR system, accelerating its aging.

Engine Design: Different diesel engine designs may affect the EGR system's aging rate. Some engine designs might be more susceptible to particle effects, causing EGR system blockages or aging.

Maintenance: Irregular maintenance or delayed oil changes, failure to replace faulty filters, and poor maintenance practices may accelerate EGR system aging.

Fuel Quality: Impurities in low-quality diesel fuel may adversely affect the EGR system, leading to faster aging.

To delete an L5P Duramax (including model years from 2017 to the present), it's not just about removing the EGR; it also involves eliminating DPF, DEF, and other emission-related components.

Typically, when you remove the EGR and DPF or conduct other hardware modifications, you can't overlook the issues at the system or software levels. Once modifications are made, the system will flag errors or provide warnings. An L5P Duramax tuner is specifically designed to alter the engine's electronic control system, adjust performance parameters, and deactivate emission-related functionalities.

Here's the notify:

Finally, I'd like to introduce Spelab's new products. From January 9th to 14th, 2024, we'll be launching a range of DPF pipes primarily designed for various Duramax models, featuring options with and without mufflers, as well as dual and single pipes, and for Powerstroke models across different years. In the next article, we'll provide detailed insights into these 14 new products. Stay tuned!

Additionally, we have some exciting news to share: SPELAB welcomes all automotive enthusiasts to offer product suggestions or innovations. Whether it's suggesting color coatings, adding styles, or proposing other enhancements, if we adopt your ideas, we'll offer gifts or benefits to our collaborators. Please leave your comments on the blog or comment on our Facebook page:https://www.facebook.com/SpelabAutoparts

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