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  #49  
Old 06-15-2015, 01:22 PM
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Quote:
Originally Posted by GreenDiesel View Post
The "master" for the odometer is the instrument cluster on the WK. The PCM will store the value, but if you transfer the PCM to another vehicle then it will update it's internal value with that one being broadcast on the CAN bus of the new vehicle.
That's great news. Does the PCM also have a VIN flashed into it? If so, can it be overwritten?

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  #50  
Old 06-15-2015, 01:38 PM
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Re: green diesel engineering tune

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Originally Posted by Roadkill View Post
That's great news. Does the PCM also have a VIN flashed into it? If so, can it be overwritten?
Yes, the PCM does have the VIN programmed (this is necessary for the immobilizer function).

Also, Yes - the PCM can be reprogrammed very many times according to which vehicle it's currently installed in.
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  #51  
Old 06-15-2015, 09:11 PM
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Re: green diesel engineering tune

Quote:
Originally Posted by GreenDiesel View Post
Yes, the PCM does have the VIN programmed (this is necessary for the immobilizer function).

Also, Yes - the PCM can be reprogrammed very many times according to which vehicle it's currently installed in.
Will it mess with anything on the electronic dash like oil change %, tire pressures, DEF gague, or change anything with the vehicle other than just a engine tune and shifting attitude? Would be very interested, but need to be able to flash and remove(set back to stock) at will.
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  #52  
Old 06-15-2015, 09:48 PM
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Re: green diesel engineering tune

Quote:
Originally Posted by chadg2 View Post
Will it mess with anything on the electronic dash like oil change %, tire pressures, DEF gague, or change anything with the vehicle other than just a engine tune and shifting attitude? Would be very interested, but need to be able to flash and remove(set back to stock) at will.
Oil Change %: Unless driven by excessive regenerations, the percentage is scaled based on the odometer value stored at the last reset and the present value. The GDE tuned ECM will be set at 100% when you get it since we don't know your current value - until the next change it'll be wrong and you'll have to know when to do it. If you then drive for a long period of time then swap back the stock ECM, the percentage will likely drop below zero and you'll have a P1d30 fault for oil viscosity too low (since the ecm will think you've done whatever that long distance is without a change). A simple three stomps of the pedal will reset it again and get you out of limitation.

Tire Pressures: Controlled by a different module, not affected.

DEF Gauge: If swapping ECMs then it will re-update as you drive.

Shifting: It will be affected just since you will have more torque available at a given pedal percentage - for the same rate of acceleration you'll have lower upshifts. Shift quality will remain the same since it's based on absolute flywheel torque values.
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  #53  
Old 06-15-2015, 09:59 PM
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Re: green diesel engineering tune

Quote:
Originally Posted by GreenDiesel View Post
Oil Change %: Unless driven by excessive regenerations, the percentage is scaled based on the odometer value stored at the last reset and the present value. The GDE tuned ECM will be set at 100% when you get it since we don't know your current value - until the next change it'll be wrong and you'll have to know when to do it. If you then drive for a long period of time then swap back the stock ECM, the percentage will likely drop below zero and you'll have a P1d30 fault for oil viscosity too low (since the ecm will think you've done whatever that long distance is without a change). A simple three stomps of the pedal will reset it again and get you out of limitation.

Tire Pressures: Controlled by a different module, not affected.

DEF Gauge: If swapping ECMs then it will re-update as you drive.

Shifting: It will be affected just since you will have more torque available at a given pedal percentage - for the same rate of acceleration you'll have lower upshifts. Shift quality will remain the same since it's based on absolute flywheel torque values.
So this tune won't work with the flash tool on your website?
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  #54  
Old 06-15-2015, 10:13 PM
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Re: green diesel engineering tune

The flash tool you see listed on our website now is the old one which we are phasing out. We are moving to a newer flash tool in the coming months but protocols supporting the Ram/Jeep EcoDiesel ECM have not yet been developed yet and we do not have a clear ETA on when that will be. It could be 3mths or 3years.

Presently the only options are deploying the GDE tune to your vehicle is either the mail-in option (remove your ECM, send to us for tuning, we then overnight it back) or the ECM exchange option where we configure an ECM matching your vehicle config and send to you. Then when you have the ECMs swapped and the stock unit returned we will credit you the core charge back.
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  #55  
Old 06-16-2015, 05:42 PM
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Is there an ETA on the EcoTune?

Previous customers (on earlier platforms)... were more people buying the Hot or the Eco versions? I think I would be happy with either, especially because I hope to keep the vehicle 10+ years and so view this as an investment in not having to deal with clogged EGR or failed DPF/SCR, but my initial inclination would be to maximize fuel economy rather than maximize power.
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  #56  
Old 06-16-2015, 06:32 PM
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Quote:
Originally Posted by Roadkill View Post
Is there an ETA on the EcoTune?

Previous customers (on earlier platforms)... were more people buying the Hot or the Eco versions? I think I would be happy with either, especially because I hope to keep the vehicle 10+ years and so view this as an investment in not having to deal with clogged EGR or failed DPF/SCR, but my initial inclination would be to maximize fuel economy rather than maximize power.
I had the Eco tune on my 07 and if my memory serves me right which it probably won't the mileage was not significantly different under normal driving compared to the hot. There was just more power on the hot tune. Jaje had the hot tune and DPF delete on his WK. I was getting 24/25 in the city and at 80 on the highway with my tuned WK.
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  #57  
Old 06-16-2015, 06:32 PM
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Re: green diesel engineering tune

Quote:
Originally Posted by Roadkill View Post
Is there an ETA on the EcoTune?

Previous customers (on earlier platforms)... were more people buying the Hot or the Eco versions? I think I would be happy with either, especially because I hope to keep the vehicle 10+ years and so view this as an investment in not having to deal with clogged EGR or failed DPF/SCR, but my initial inclination would be to maximize fuel economy rather than maximize power.
The Ram and Jeep EcoDiesel tunes (both of them) are in production and live to purchase on our website. Presently we are offering only the hot tune since the only difference between the Eco and Hot Tunes was the maps defining the engine's max torque curve and the accelerator mapping about 80% travel. I would say if you have more specific questions it'd be best to send a PM or an email so that we can better serve you in an appropriate time frame. There is also a wealth of information available on our website.

There are also two options presently available for the tune - engine braking (while coasting) and activation of the regen messaging with every regen event.
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Old 06-16-2015, 08:36 PM
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Re: green diesel engineering tune

Iím just finishing week 3 with the GDE tune, but initial impressions have all been positive. The tune has really transformed this vehicle. The lack of a flash tool for the time being really isnít that big of a deal for me. If you donít want the details and just want the verdictÖ itís definitely two thumbs up and I wouldnít hesitate to do it again.

First up... power! Most notably in the hot Georgia "summer" is the fact this thing is now fun to drive with the AC on. Before it was lethargic, particularly off the line. Now it's as if I don't have the AC on. This is a major bonus for drivability and safety when pulling out into traffic. Basically, it has more power whenever I need it and the power is very smooth and linear.

0-60 runs were reduced .8 seconds on average. My best observed was 7.0 and worst was 7.3. I was getting anywhere from 7.8 to 8.0 stock. Additionally, this thing leaps out of the hole with a little power braking. It will probably surprise you the first time you do it. The power increase is really nice and gives the GC a lot more grunt without being ridiculous. It was pretty stout stock for a 5,500 lbs. vehicle, but you could tell it was just enough and nothing more. With the tune installed, it feels much stronger throughout and never struggles.

Next upÖ MPG. With all this extra power, you'd be shocked at the MPG increase. Iíve noticed that my instant mileage display shows approximately 4-5 MPG better than it was before. Highway MPG is up approximately 8 MPG at a constant 60 MPH. I couldnít believe it, so I ran my 52-mile test loop twice. I observed a hand calculated 38.8 MPG with the tune installed and 31 stock. Interestingly, the Dash Commander app was spot on with my hand calculations, but my EVIC was optimistic by 4 MPG.

City/Mixed MPG is also up, but not as much as highway MPG. Iím seeing around a 4 to 5 MPG increase in both of these conditions. This last week with city driving, itís been 23.9 MPGÖ and thatís with me driving it hard. I expect this will go up a couple more MPG once I settle back into normal driving habitsÖ if that is possible now. The bonus here is the vehicle is far more drivable than before and you get increased MPG. I no longer have to wring the neck of the GC to maneuver it around Atlanta traffic like before.

Turbo LagÖ feels to be reduced in normal, but unfortunately the limiting factor here is the transmission. The transmission just will not let this thing lug. If you manually hold the gear and roll-on, you can definitely tell a difference. However, this really isnít a practical way to drive this thing. Itís good to know though, because this can be really handy when towing a trailer

Another reason I went with the GDE tune over others was the reduced soot and DEF dosing. With the EGR/Turbo coking and SRC failures, Iím hopefully these two additional benefits will increase the longevity of these parts and keep me a long way away from the stealerships.

Long-term review nextÖ
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  #59  
Old 06-16-2015, 10:23 PM
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Re: green diesel engineering tune

Are all the Ecodiesel engines going to be exactly the same. Meaning the same tune will perform exactly the same in every engine out there. Are you using a stock air filter or something else?
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  #60  
Old 06-16-2015, 10:39 PM
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Re: green diesel engineering tune

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Originally Posted by chadg2 View Post
Are all the Ecodiesel engines going to be exactly the same. Meaning the same tune will perform exactly the same in every engine out there. Are you using a stock air filter or something else?
There will always be some level of variability, as much as there is within the engine build itself (which is generally quoted as being +/- 5% in terms of delivered power, etc).

With that said, we test our tunes in a manner similar to if it were developed for an OEM client so we are confident in the fact that the same tune will run on all the vehicles/engines without issues to the customer.

We have always used just the stock air filters and change them regularly - of course this is a topic of constant debate, just like which is the best oil to use. The stock air filter on the WK tends to tear along the thick rubber seam that seals to the air box so you have to be congnizant of checking it and definitely replacing if it's broken.
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