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Tuning your EcoDiesel

106K views 190 replies 59 participants last post by  dsears00 
#1 ·
Hello all - my company, in Long Island NY has recently partnered up with Celtic Tuning in the UK.

I would like to find out how many of you would be interested in tuning your Ecodiesel. I have used them for my other vehicles and they have come out great so I am really looking forward to trying it on our Grand Cherokee.

I will be tuning my own and will allow you to test drive if interested in the tune. Ecu's can be mailed in and shipped back within 24 hours.

DPF and EGR removal is available as well.
 
#7 ·
Exactly. Much more appealing to me as well.

The large majority of our diesel repairs are on engines to do high rate of fuel in oil, dpf regen issues, egr valves and egr systems completely clogging with carbon. Such as her coolers bursting and allowing coolant in exhaust, egr pipes, turbos sooting up.

We had a 6.5 diesel intake manifold off of a 2002 school bus. The inside of this intake was spotless. Our tech actually walked inside the office to show us the differences between a 6.4 power stroke we have apart and a 6.5 old non egr and dpf Chevy.

Take an intake off of a duramax, Isuzu, power stroke, cumins, etc and it'll be coked up with carbon. We are just so used to seeing this now that it has become normal and the clean 6.5's, 7.3's are becoming more rare.


I would be ignorant to say that these systems are not really saving our atmosphere but to put it simply... Pay $3k to replace your Dpf, 3k for a sooted up turbo that can no longer be cleaned, tows to your local shop, increased wear on engine, must use synthetic oil that is made to soak up the carbon and other contaminants, and a DECREASE in fuel mileage ( 2013 duramax averages 12-15mpg, my old 2004 no egr and dpf averaged 19.5 at 170k miles).

Also- remote starting your Ecodiesel and allowing it to idle for 20 min is a BAD idea. I will show you some pictures of what happens when these diesels idle. Internationals actually turn the engine off if the engine is idling more then 11 minutes.

Can you tell this bothers me? This keeps my shop busy but I still don't agree with it.

It would almost be wise to remove dpf and tune the truck back to factory to bring it back under warranty. You'd be prolonging the life of the engine and attached parts as well as Increasing fuel mileage.
 
#8 ·
So what happens if we live somewhere where there IS no smog testing ;) ??
It would appear that removing/reflashing the ECU would cause a problem during warranty but, after warranty, removing all the gubmint demanded B.S. and reflashing the ECU would be most beneficial.
At least to those of us without annual smog testing ;) !!
 
#9 ·
So what happens if we live somewhere where there IS no smog testing ;) ?? It would appear that removing/reflashing the ECU would cause a problem during warranty but, after warranty, removing all the gubmint demanded B.S. and reflashing the ECU would be most beneficial. At least to those of us without annual smog testing ;) !!
Exactly. If you could find a local shop that has wiTech then you're still good to go.

Tunes are undetectable at dealers. The ONLY way they can tell that there is a tune is if the tech feels a difference in the way it drives and for ex if the max turbo boost is 20 and the truck is now boosting up to 25psi. Some hollow the inside of the dpf's there really is no way to tell. If you do a dpf delete only in the Ecu...
 
#10 ·
We are having multiple reports from the same people here in Aus with the DPF filling very quickly and failing to enter passive regen, and also failing to regen when it is telling the drive to drive at highway speeds.
They then go into limp mode and are having to get taken to dealers by tow trucks.
Oddly enough it is effecting MY14 when it was super rare for MY11-MY13s.
 
#11 ·
We are having multiple reports from the same people here in Aus with the DPF filling very quickly and failing to enter passive regen, and also failing to regen when it is telling the drive to drive at highway speeds. They then go into limp mode and are having to get taken to dealers by tow trucks. Oddly enough it is effecting MY14 when it was super rare for MY11-MY13s.

I believe it. That is odd though. I know the input rate of DEF fluid is increasing to lower emissions. Maybe the regen process has to be increased as well.

There was zero training when I picked up my diesel at the dealer on how and when the regen process will take place.

I don't understand why there is not a manual regeneration button on the dashboard. Only the dealer or shop that has wiTech can perform a regeneration using the laptop.
 
#12 ·
We don't have DEF in export countries, it is only Nth America. All are stupefied that there isn't a manual regen button. Of course if there was one, some idiot would do it while parked ever some dried leaves or similar. Dealers have an official form to fill out when they encounter this problem. It should not be happening.

We don't even get the diesel supplement manual you guys get.
 
#13 ·
We don't have DEF in export countries, it is only Nth America. All are stupefied that there isn't a manual regen button. Of course if there was one, some idiot would do it while parked ever some dried leaves or similar. Dealers have an official form to fill out when they encounter this problem. It should not be happening. We don't even get the diesel supplement manual you guys get.

Funny you say that. We had some burnt grass at our shop. That is most likely exactly why there isn't a manual button. 1,000+ degrees can do some damage.
 
#17 ·
Hello Guys,

I trade my ram 2500 because Ram would not fix it. They replaced all the O2 sensors 4 times,2 ecu's,several reflashes it was in the shop 38 days in the first year. I have a tuner friendly dealer but with all the problems I was afraid to change any thing for fear of them voiding my warranty.
I know I could have fixed the issues,by doing deletes.

My dealer helped me to get out of the truck with only 13k on the OD and get into my Eco.

I want to do the deletes on my ECO,but use simms to fool the computer into no regens. I do not need 400hp!!

I do not want to leave any traces in the ecu and give them an excuse to void my warranty.

I want to get rid of the EPA BS and give longevity to my engine.

What stupid engineer decided to put unburnt fuel and soot back into a close tolerance motor was a good idea!!!!!

All of my vehicles are Diesel,14 Jeep Eco,13 VW Jetta TDI,1984 Mercedes 190D, 2000 Hustler 72" Zero turn,1986 IH 4x4 254 tractor. We like the smell of Diesel !

Regards
Don
 
#18 ·
I would go the same route if they made something to trick the sensors. What I would do is go with a DPF ONLY delete tune and then reinstall the dpf filter and have the car tuned back to factory before going in for repairs. You don't have to go with the performance tune. I guess I just assume I'm never going to be bringing it back in for warranty repairs.. wishful thinking.



I plan on keeping this truck for a while
 
#23 ·
I have not gotten under my Eco yet to take measurements, If I new the value of the resistor needed I would make my own.

With my back round and I am able to trouble shoot to component level I think I can figure out what they should be and make them, but I am very busy with my work load since I am self employed.

That is why I was hoping someone else has done the leg work, and I could just buy them for under $100.00.

I will post back to this thread with any info I may find.:D
 
#26 · (Edited)
Hello Guys,

I made a couple of calls today regarding products to do deletes on our Eco's.

I called Shibby Engineering and XDP they have no products as of today for our Eco's, they are to new here in the USA. :confused:

I will continue my search and put post them here in this thread.
 
#31 · (Edited)
A colleague at work recently removed the DPF and deleted the DEF on his 2012 Dodge 2500. Replaced the DPF with straight pipe and deleted the codes. The difference in performance is quite marked but the big thing is that the oil is still very clean after 2000k.
I really want to do this to my JGC.

Pete
 
#32 · (Edited)
Me too....although, with my driving habits, I have no issues. Better mileage and performance are always good. Soot on the rear of the vehicle is the only downside I can see.

Step 1: tap into the back pressure sensors and determine their signal levels.

Step 2: design a device that replicates these signals...a "fooler"

Step 3: Install the foolers and operate for a few days AFTER a DPF regen cycle. Reconnect, regen, repeat.

Step 4: if no codes, gut the DPF or remove and enjoy.
 
#33 ·
Me too....although, with my driving habits, I have no issues. Better mileage and performance are always good. Soot on the rear of the vehicle is the only downside I can see.

Step 1: tap into the back pressure sensors and determine their signal levels.

Step 2: design a device that replicates these signals...a "fooler"

Step 3: Install the foolers and operate for a few days AFTER a DPF regen cycle. Reconnect, regen, repeat.

Step 4: if no codes, gut the DPF or remove and enjoy.
Sounds good and thanks for that.

I have a 2013 JGC and in 14,000k have not seen a regen signal. Maybe it does not have that display in mine.
 
#35 ·
I have tuned my ecodiesel with Celtic Tuning. The tune is awesome. It has a very noticeable difference in power.

PM me if you're interested in a tune.


I do not recommend removing the DPF filter. The DPF filter is very close to the firewall and is a double walled pipe. I want to do some more research before I give the go-ahead.

Our shops been busy so I have not had a whole lot of time to play with the Jeep. Customers come first :)
 
#36 · (Edited)
Celtic tuning offer a DPF and EGR removal service with their tunes for JGC in the UK. Surely you can ask them for some help?
Also, what about just gutting the DPF? That way you still retain the double walled pipe and stock fitment no?
Also, why would it matter if the DPF is close to the firewall? That would only matter when it does a regen no? And if you disable that there's no problem.
 
#37 ·
Celtic tuning offer a DPF and EGR removal service with their tunes for JGC in the UK. Surely you can ask them for some help? Also, what about just gutting the DPF? That way you still retain the double walled pipe and stock fitment no? Also, why would it matter if the DPF is close to the firewall? That would only matter when it does a regen no? And if you disable that there's no problem.
They also offer Vmax removal? What this?

And how do you guy the DPF?

Has anyone done all this?
 
#39 ·
Vmax removal is just removing the top speed limiter. Don't think many people with a jeep will be doing that as I doubt the car can reach it.

Not sure about gutting the DPF, but if it's anything like gutting a Catalytic converter it's literally as easy as removing it, and ramming a large rod through it until all the internals fall out.
 
#41 ·
Vmax removal is just removing the top speed limiter. Don't think many people with a jeep will be doing that as I doubt the car can reach it.
Only did it once and had a LOT of weight in the truck but it felt like it hit a hard wall at 118mph. I'm pretty sure this was computer limited not drag/power.
 
#40 ·
I just read that gutting the DPF will not prevent a regen in most modern diesels. There is monitoring logic in the ECU that tracks if a regen has occurred within a certain number of miles and triggers a regen regardless of back pressure. I suspect an error code occurs if the sensors don't respond accordingly.
 
#46 ·
I assumed the top speed would have been limited to 155 mph, as that's pretty much what all cars here in Europe are limited to. That's why I assumed nobody would be reaching it or wanting to reach it. But if it's limited to 120, then yes, maybe you are hitting the limiter.
 
#50 ·
I am a dealer for Celtic in the us.

Dpf can be tuned out
Egr system can be tuned out

Dpf removal- the best way would be to guy the dpf filter. This way you retain the double walled pipe that is along the firewall.

I have had the Celtic tune in my personal jeep for about a week now. It's been great. Any questions, pls email me. I also can get you back your Ecu with a 24 hour turnaround time.
 
#54 ·
I've never heard of making anything (gas or diesel) go faster by giving it less fuel, if you want more energy out (speed) you have to put more energy in (fuel), you can't beat physics ;-)
/QUOTE]

I agree! But you need more air too. A leaner burn makes more power up to the point of detonation in a gasser.

Diesels make more power and heat when run rich. Heat expands air and drives the turbo harder, providing more intake air. More power is made until the turbo or injection system maxes out....or something breaks!
 
#55 ·
Just curious, is "gutting the DPF" and the associated ECU tune reversible? Not so I can try to retain the warranty or whatever, I'm thinking about if I have to move back to a state that requires it. (Yes I know I already live in such a state, but hopefully I will be moving within a few years to state that does not.)
 
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