Green Diesel Engineering - KJ ECU tuner (NEW)

BCool · **Posted:** Tue Jun 23, 2009 7:12 pm

While it may be useless to you to review this tune vs. stock, its not to others.

Inmotion was not in the cards for me, so I wanted to know the difference between GD and stock.

chrispitude · **Posted:** Tue Jun 23, 2009 7:18 pm

CRDMiller wrote:

It seems like the greendiesel tune has better economy, than the in motion stage II, i wonder where it stands vs stage I?

You can read my thoughts on the Inmotion eco-tune here. Inmotion indicated that the eco-tune does best for driving dominated by city driving. My wife's commute was about half city, half highway.

- Chris

linewarbr · **Posted:** Tue Jun 23, 2009 7:46 pm

CRDMiller wrote:

I don't want to be an @$#%, but, comparisons between green diesel's product, and stock, are USELESS.

Comparisons between green diesel and in motion, on the other hand, are desirable.

As a consumer, your choice is not between nothing and green diesel, it's between green diesel, and inmotion.

I think we all already know that the fooler boxes are not so great for the money.

I love that this new product is out, but as a inmotion user, unless it's significantly different/better, then my money goes to the first company that reprograms the tcm.

It seems like the greendiesel tune has better economy, than the in motion stage II, i wonder where it stands vs stage I?

If i did not read things like "maintain stock noise level" i would possably consider it, i want power and economy, i don't care that it does not sound like a td.

Also changing gears where the tc would normaly slip? What if you get tcm programming? would the ecm still make the gear change? Seems like a bad investment?

I'm concerned. Without real data, how can a user select the proper unit for them?

I understand, and agree. I am awaiting the return of my ECU from GDE, and I'll say that I never would have considered it without the 50% off introductory price. When I looked at it, I said, "This thing better be BANGIN' to charge $200 more than Inmotion," because I had Inmotion in my "mod list." Even if members had gotten theirs back and raved about it, I still would have found it incredibly difficult to justify the extra expense, with so many other things I want to do, and with so many other members that have had good experiences with Inmotion.

Is it worth the extra $200? Only time will tell, as members receive their tunes and post on their results. Hopefully, since these guys seem to know their stuff and genuinely want to develop products for us orphaned CRD'ers, if we invest in them they will invest in both a manual trans swap and reprogramming our TCM's. I can tell you that if they can reprogram the TCM, I'll be all over that.

I suggest a return to the thread in the "CRD Tech" section about ECU reflashes for posting results on the tune.

gmctd · **Posted:** Tue Jun 23, 2009 7:58 pm

Unfortunately, as the case may be, choices do include nothing, as well as INMOTION and GDE - therefore all comparisons are required in order to enable selection amongst all choices - fe, statements were made that most fuel economy improvement over stock would be in city\around town: less fuel used at idle would improve city economy, but not hiway economy - we need all input, stock to whatever

UFO · **Posted:** Tue Jun 23, 2009 8:55 pm

BCool wrote:

While it may be useless to you to review this tune vs. stock, its not to others.

Inmotion was not in the cards for me, so I wanted to know the difference between GD and stock.

Same here. I'd consider an ECU tune if it returns better drivability and economy. I couldn't care less about increased torque, the dang thing has PLENTY. I didn't buy a drag racer, I bought a Jeep.

grywlfbg · **Posted:** Tue Jun 23, 2009 9:14 pm

UFO wrote:

Same here. I'd consider an ECU tune if it returns better drivability and economy. I couldn't care less about increased torque, the dang thing has PLENTY. I didn't buy a drag racer, I bought a Jeep.

Well, I'm not planning to tell my wife that I had her ECU flashed. She may notice the check engine light is gone but I'm interested in her feedback to see if she notices and what gets her attention.

Would have been better if she could drive it both ways back to back (she's out of town for work this week) but she drives it every day so we'll see.

ac5501 · **Posted:** Wed Jun 24, 2009 8:48 am

CRDMiller wrote:

I don't want to be an @$#%, but, comparisons between green diesel's product, and stock, are USELESS.

I would not go so far as to say useless. My vehicle is very close to stock. Im interested in seeing what AVG. increase if fuel economy it gives. For the price, it needs to give me at the very least a 3mpg gain in avg mpg in order to justify the expense. So for me, I'm much more interested in before and after numbers rather than a comparison between products. That being said, I wonder what the fuel economy gain for the inmotion is[/quote]

runawayfreighttrain · **Posted:** Wed Jun 24, 2009 1:11 pm

I am new to the forum but have been watching quietly for a while. Being this is my first post I will try and make this brief & hope all the bad attitudes I keep seeing (I do not mean everybody) on this forum will not try to discount what I say because I am new here, or because my opinion differs from theirs....
With that said I sent my ecu out last week to GDE from the Philly area & they turned it around & got it back to me in 2 days, I could not ask for more. They answered all of my questions & I am so far very happy with the improvements to the driveability of my CRD. Smoother idle, less smoke at part throttle, pulls much better on hills, just plain old peppier around town. Not sure of the mileage gains yet but I am in the go pedal alot less now, so I am guessing it will be somewhat better. I am very happy with their product & if it keeps me from having any more egr problems without unplugging or modifying the wiring harness I will be thrilled.

MOSFET · **Joined:** Sat Feb 25, 2006 11:40 pm **Posts:** 295

runaway - Welcome to the forum. I have a stock CRD and am very interested to hear how the GDE tune compares to stock performance. Keep us updated on your results.

CRD Joe · **Posted:** Wed Jun 24, 2009 1:59 pm

runawayfreighttrain wrote:

I am new to the forum but have been watching quietly for a while. Being this is my first post I will try and make this brief & hope all the bad attitudes I keep seeing (I do not mean everybody) on this forum will not try to discount what I say because I am new here, or because my opinion differs from theirs....
With that said I sent my ecu out last week to GDE from the Philly area & they turned it around & got it back to me in 2 days, I could not ask for more. They answered all of my questions & I am so far very happy with the improvements to the driveability of my CRD. Smoother idle, less smoke at part throttle, pulls much better on hills, just plain old peppier around town. Not sure of the mileage gains yet but I am in the go pedal alot less now, so I am guessing it will be somewhat better. I am very happy with their product & if it keeps me from having any more egr problems without unplugging or modifying the wiring harness I will be thrilled.

Hey Train, good post. One thing, get rid of that K&N filter and get an Amsoil EAA201. K&N filters breat great because they let to much crap through. That and if you dont need an oil'd filter (and you dont) you should use one.

Just some advice.

NJCRD · **Posted:** Wed Jun 24, 2009 2:31 pm

I have been reading about the reviews for InMotions and was about to order when this popped up.
I'm between the two. I like the diesel noise so I could careless about being quiet. I want more power.
I read from someone in the IM post that had the economy tune and had it retuned because economy seemed to have to much of a soft spot.
Awaiting user reviews and feedback. If the GD people are watching, count me out for a manual. NJ/NYC driving is a pain enough. Do keep me posted about the fore mentioned Turbo upgrades.

deezuhl · **Posted:** Thu Jun 25, 2009 12:27 am

I realize that I'm a newbie in here... and as such, some people will discount my observations... but...

I previously had the Inmotion tune (not the eco tune) and now have the GDE. I have to admit that there are some times that I think the Inmotion tune may have provided a tad more torque. Overall though, I have to say that I'm very impressed and satisfied with the GDE tune. All of the observations that I made in my previous post stand.

With now having about a weeks worth of driving around town in about a 50/50 city/highway scenario, as well as a trip from Baltimore, to Philladelphia and back to Baltimore, I can now comment on MPG. Let me just say... WOW!

*Trip to Philly and back... with the A/C on, two passengers: 30.7 MPG (Calculated) (Best ever with A/C on and Inmotion: 26.3)

* Every day commute (22 Miles each way, city+Highway) with the A/C on: 26.7 MPG (Calculated) (Inmotion with A/C: 23.5 MPG)

* Every day commute with *no* A/C: 28.3 MPG (Inmotion *no* A/C: 25.9 MPG)

When comparing the GDE and Inmotion tunes, I'll take a *hair* less torque (and a LOT less smoke) for the overall smooth nature of the GDE Tune. Not to mention the increase in MPG (which I didn't really expect to see) and the imporvement to the off the line response, etc..

Still a very happy GDE customer.

gmctd · **Posted:** Thu Jun 25, 2009 1:22 am

K&N also makes an accordioned paper filter - don't be too hasty with inexperienced advice, eh................

CRD Joe · **Posted:** Thu Jun 25, 2009 6:40 pm

Well now Im sorry I missed out on the good deal price that GDE was offering.......

Turbo (Diesel) bummer.

If the GDE guys are reading this Id like to see a forum attatched to your website so we could address questions and issues directly to you.

Just an idea.

chrispitude · **Posted:** Sat Jun 27, 2009 8:35 pm

I had an opportunity to drive Fred's CRD today (previously my CRD) with the GDE tune. Impressions versus my Inmotion ownership:

The throttle is less sensitive in light throttle application. The only way I can think to describe it is "less touchy." Pulling out from intersections, the Inmotion tune tended to yield a rubber-band effect - it would surge forward on a wave of torque, then slow down as it got up to speed. The GDE tune accelerates in a very linear manner with pedal travel.
Even with the Suncoast converter and the shift kit, the shifting is noticeably softer. Some of the shifts were rather firm before - now it shifts more like factory.
The RPMs during normal driving were lower. With both the original factory tune and the Inmotion tune, I was always very conscious of being out of lockup because it felt a lot looser than being locked up. This was one of the things I hoped the Suncoast converter would improve, and it did, but it didn't quite get to where I wanted With the GDE tune, the RPMs at 50mph (just out of lockup) are noticeably lower. I'm not sure quite how it would be, but the torque converter actually felt tighter to me. Is it possible that if the tune is making more torque at a lower RPM, that the torque converter will naturally run at that lesser RPM to produce the same needed torque output? Regardless of how, the GDE tune makes the Suncoast converter feel llike how I expected a low-stall converter to feel.
During daylight, I could not provoke any visible smoke in the rear view mirror.
Going up a hill, you do not get that raw-power sledgehammer "thrumming" in the drivetrain. Power-wise, the GDE is somewhere between factory and Inmotion.

If you like big black clouds of smoke and stupid-strong surging torque, the Inmotion tune is hands-down the winner. The GDE tune won't give you the same silly grin that the Inmotion tune can deliver. If you are looking for a tune which will deliver a significant boost in fuel economy, moderately more power, and a noticeably improved driving experience, the GDE tune delivers in spades. It is everything the factory tune should have been, but wasn't.

- Chris

CRD Joe · **Posted:** Sun Jun 28, 2009 1:51 am

darn, kind of like the power of my inmotion. Would kind of like to see if I could get 40mpg with her though.....

Decisions decisions......

chrispitude · **Posted:** Sun Jun 28, 2009 8:49 am

Hi CRD Joe,

I will say that I never floored it - never even went past 1/2 throttle (we were driving around my area with his wife in the back, so I drove pretty sedate) so my impressions are based on "normal" driving. Fred and I may head out ourselves again today, and if we do that I think I'll give it a bit more of a workout.

It could just be differences in the accelerator pedal mapping and not the capabilities of the tunes themselves. I really like the lack of surging in normal light-throttle driving.

I'll see if I can get another stint behind the wheel before they head back home this afternoon.

- Chris

danoid · **Posted:** Sun Jun 28, 2009 10:08 am

chrispitude wrote:

If you like big black clouds of smoke and stupid-strong surging torque, the Inmotion tune is hands-down the winner. The GDE tune won't give you the same silly grin that the Inmotion tune can deliver. If you are looking for a tune which will deliver a significant boost in fuel economy, moderately more power, and a noticeably improved driving experience, the GDE tune delivers in spades. It is everything the factory tune should have been, but wasn't.

- Chris

Black smoke of any kind is forbidden to come out of my tailpipe. Also to consider is hardware longevity. Stupid strong torque can break things. In my job I've seen plenty of hardware ruined by bad software. It's a short list of people who I'd trust to put software in my engine. GDE is on that list.

CRD Joe · **Posted:** Sun Jun 28, 2009 5:18 pm

chrispitude wrote:

Hi CRD Joe,

I will say that I never floored it - never even went past 1/2 throttle (we were driving around my area with his wife in the back, so I drove pretty sedate) so my impressions are based on "normal" driving. Fred and I may head out ourselves again today, and if we do that I think I'll give it a bit more of a workout.

It could just be differences in the accelerator pedal mapping and not the capabilities of the tunes themselves. I really like the lack of surging in normal light-throttle driving.

I'll see if I can get another stint behind the wheel before they head back home this afternoon.

- Chris

Thanks Chris. The more feedback the better. Especially before spending 500+ dollars when I already have a chipped truck.

chrispitude · **Posted:** Sun Jun 28, 2009 7:42 pm

I got some more wheel time in Fred's CRD today. The GDE tune definitely has less peak torque than the Inmotion tune. There is a steep hill that the Inmotion tune would chug up at 55mph (and you could really feel the power pulses in the whole vehicle chassis), but the GDE tune couldn't hold lockup when I started up the hill at 55mph. I also had another opportunity to floor it on an onramp and the acceleration there was also not quite what I remember from the Inmotion tune.

Even cruising at 70-75mph in the hilly terrain of the Poconos with the A/C on, the EVIC was reading 31.0mpg. Absolutely unreal. I also again noticed how smoothly the Jeep now shifts in traffic, and how easily it cruises up and down hills even out of lockup.

Fred mentioned he might call GDE and see if it's possible to pull a bit more power out of the tune given that he has the Suncoast and the Magnaflow cat-back. I'll let him comment further when he gets back home.

- Chris

Green Diesel Engineering - KJ ECU tuner (NEW)

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