Hey Scotty,I've seen videos where Removing the EGR improves Fuel efficiency ,power and engine life.
My car runs great, gives decent Fuel efficiency, it's just my curiosity that is the damn EGR hiding my cars true potential. I have a 2007 Model old school Jeep, with a DI Turbo 4 cylinder diesel engine, and has a Mechanical Bosch pump. No electronics No ECU. No Sensors. The car has clocked 1,50,000 miles and has been great with no oil leaks or burns. In India, these jeeps run forever like the Toyotas. The car has a Mechanical EGR. My mechanic here isn't fond of this idea. We dont have any emission testing here either.
1)Is it true, shall I go ahead and remove the EGR, will it improve performance and efficiency?
2) what can be the possible side effects I the long run.
1)Is it true, shall I go ahead and remove the EGR, will it improve performance and efficiency?
no, if the EGR system is working properly, it should not affect performance. But you do need to keep it clean.
2) what can be the possible side effects I the long run.
Removing it will definitely hurt fuel economy, and will likely cause all kinds of diagnostic problems, and possibly engine running problems, since the computer expects it to be there.
If your region has emissions testing, it may cause the vehicle to fail, and the modification could even be against the law.
the question has been answered a few times before. Always search first.
https://carkiller.com/scottykilmer/qa/is-deleting-the-egr-going-to-harm-my-engine/
@imperator I've searched before I posted. I've seen no such posts of EGR removal in traditional cars with No ECM and Cat. Here I'm asking about a no electronics/Sensors engine. In one of Scottys videos in 2019, you can see him calling an EGR a Bizzaro Compromise, a anti pollution unit, for lowering the combustion temperature so that the Cat doesn't turn cherry red on high temps. Engines manufactured in golden days had no EGR , and after the environmental norms kicked in, all the company did was to add an EGR to the same engine and tune it if it has a computer. Where Scotty also claims that EGR reduces performance and Fuel Economy and the power stroke has ingested less oxygen and already the exhaust gas.
a 2007 Jeep definitely has a computer. Engines make more power now than in the "golden days", and EGR has evolved a lot since then.
@imperator haha no, it's not the American Jeep brand, I'm referring to. It's the Indian Jeep. The one you see used in wars. Open top rugged ones. It's called the "Mahindra Bolero". It did not have an ECM back then. We call them Jeep here, sorry for the wrong name . Yes Modern Engine make more power. Just hoping that my car isn't compromised of it's TRUE potential for the sake of some unreliable pollution norms set by govt, where tax payers face all the loss. Thank you:)
I see, so it has absolutely NOTHING to do with Jeep. Next time, please state that it's a "Mahindra Bolero" at the very beginning, as you were directed in our posting instructions . Anyway I don't think anybody here can help you much with your Indian/French car.
Scotty,I've seen videos where Removing the EGR improves Fuel efficiency ,power and engine life.
It does the opposite. If you remove your EGR valve (Exhaust Gas Recirculation Valve), the engine can heat up to the point where the exhaust generates nitrogen oxides, which turns into vaporous nitric acid if you live in a humid place. It's unhealthy, to say the least. If your engine has a catalytic converter, it was never designed in anticipation of somebody deleting the EGR valve. Once you delete the valve, you will overstress the catalytic converter and it will fail.
The EGR valve was introduced specifically to cut down on nitrogen oxide emissions. The EGR valve opens to let a bit of already burned air/fuel mix to get back into the engine and keep it from emitting nitrogen oxides when the throttle is placed under certain conditions.
The engine wasn't designed to reach temperatures that are conducive to generating nitrogen oxides; it was designed to do the exact opposite. It may minutely increase fuel efficiency, but I would think you'd think twice about the engine generating NOx emissions. Dilute or not, nitric acid is extremely nasty stuff.
the power stroke has ingested less oxygen
EGR is not used when power is needed. You need to understand how it works, which is why I said search the articles that were posted.