turning off egr

[4570]

I see some spending a lot of money (700 plus ) to turn off the egr valve .What would happen if you just plug it off ? I'm guessing the computer would go nuts .

 

[Bob4x4]

If you value your warranty and imho with a ecodiesel you should just live with it.

 

[JJJ]

Consider the GDE tune. The sooner you turn off the EGR the happier your Ecodiesel will be.

 

[CToney]

EGR reduces engine life, increases load on engine cooling, reduces fuel efficiency, and has high repair costs. SCR systems are by far better solution for NOx emissions. As you can tell I'm not a fan of EGR but to play by the rules that California has set forth one should leave it there.

 

[DonFitzwater]

I second the GDE tune. Purchase a new ecu and have them flash it for you. When you have a need to visit the dealer, install your factory ecu.

 

[HerbW]

I've seen a gismo that plugs into the OBDII port that tricks the dumb feature that kills your engine if you run out of DEF fluid. I've thought of plugging one in and running all the time. Anybody tried one? I have gone through the EGR burn cycle while driving to clean all that crap. A factory installed function. Sounds fun to bone it all out!

 

[CToney]

EGR doesn't have a burn cycle. Your DPF will slowly build up with soot. Once it gets so full it will do a regen and clean itself.

There are two large pieces of diesel emissions. Particulate Matter (PM) this is what your DPF looks after. The other is Nitrous Oxides. NOx is reduced by retarded timing (bad for HP and fuel efficiency), Exhaust Gas Recirculation EGR (bad for HP, fuel efficiency, engine longevity and reliability) and Selective Catylic Reduction SCR (Diesel Exhaust Fluid use). NOx causes smog. Diesel engines cause more NOx emissions than spark ignition engines.

Hopefully this clarifies a few things.

 

[Bob4x4]

I've seen a gismo that plugs into the OBDII port that tricks the dumb feature that kills your engine if you run out of DEF fluid. I've thought of plugging one in and running all the time. Anybody tried one? I have gone through the EGR burn cycle while driving to clean all that crap. A factory installed function. Sounds fun to bone it all out!

do have a link to that device ?

 

[DonFitzwater]

do have a link to that device ?

https://www.amazon.com/Adblue-Emulator-AdBlue-Trucks-Device/dp/B074KCZ42P

Maybe it's something like this?

 

[Bob4x4]

Anybody try one it says for Euro trucks,remove specific fuses..........

 

[DonFitzwater]

Anybody try one it says for Euro trucks,remove specific fuses..........

I darn sure wouldn't but like they say, "There's a sucker born every minute"

 

[KPear]

EGR doesn't have a burn cycle. Your DPF will slowly build up with soot. Once it gets so full it will do a regen and clean itself.

There are two large pieces of diesel emissions. Particulate Matter (PM) this is what your DPF looks after. The other is Nitrous Oxides. NOx is reduced by retarded timing (bad for HP and fuel efficiency), Exhaust Gas Recirculation EGR (bad for HP, fuel efficiency, engine longevity and reliability) and Selective Catylic Reduction SCR (Diesel Exhaust Fluid use). NOx causes smog. Diesel engines cause more NOx emissions than spark ignition engines.

Hopefully this clarifies a few things.

Thanks for the detailed breakdown on that. With all the acronyms, it's sometimes hard to remember which system is doing what.

How is your stock (I assume emissions intact) Ram 1500 ecodiesel handling the cold weather up where you live? I'm a fan of the SCR (and accompanying DEF usage) but I've heard stories of people having issues with it freezing and not working properly in the extreme cold.

 

[Vector]

I think the GDE tune is good, really.

 

[CToney]

Thanks for the detailed breakdown on that. With all the acronyms, it's sometimes hard to remember which system is doing what.

How is your stock (I assume emissions intact) Ram 1500 ecodiesel handling the cold weather up where you live? I'm a fan of the SCR (and accompanying DEF usage) but I've heard stories of people having issues with it freezing and not working properly in the extreme cold.

My truck is parked in a heated garage 9 C. It has been -15 C and I've driven my truck without any issues. I have the supplied winter front on. To my knowledge if the DEF is frozen you don't use any until the heater thaws it out. The truck seems to warm up reasonably fast but coolant temp does drop quickly once you reduce engine load.

 

[DonFitzwater]

I get a warning to "Service DEF system soon" when it's frozen. It'll thaw in the couple of hours of driving at -40. Engine never skips a beat.

 

[Tinman]

The modern emissions systems are very complicated. There is no "shadow tree mechanic" way to defeat them. The only way to delete is with reprogramming - hence the cost. For the ED, I know of PPEI, GDE, Blue spark, and Celtic. GDE has a great reputation and is not about rolling coal, or smoking the tires. Actually, his tunes add very little HP, but make a world of difference in the overall performance. With tunes, you can remove hardware, but you won't be able to get a dealer to work on it and it won't pass some state emission inspections. Keith (GDE) tunes the DEF flow rate to coincide with the oil change interval. If you just deleted the EGR only, the computer would increase the flow of the urea (to compensate for the increased NOx production) and "poison" the SCR. So a GDE tune turns DEF use down to a token rate to use up a tank before it can go bad. That way all your stock hardware is in place and can be put back to stock tuning in a snap (with a stock ECM).

 

[rono]

Pardon my ignorance, but what is GDE tune?

 

[HPSimpson]

Green Diesel Engineering!

 

[SDalgleish]

I'm curious if anyone has run another tuner along with the GDE hot tune. I know they don't "recommend it" just wanted to hear if anyone has been doing it.

 

[Tinman]

I don't know how you'd do that. I don't know of a "add on" box tuner, but they may exist - maybe a pressure box or something. All the tunes I know of are ecm software so you couldn't stack them. One will erase the other. I'd strongly recommend against
"stacking". I know GDE tune pushed EGTs to the max, as in well above 1400*. Add to that, and run it hard and I think you'd be sorry.