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Messages posted by: GreenDieselEngineering
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There are 4 EGT sensors in the exhaust, so we would need to know which one you are monitoring. Peak sustained EGT is 1550 F. It may spike above that during a transient maneuver, but will settle back in 15-30 seconds.
Call or email us your name or VIN so we can check.
mtbl wrote:Can this be purchased without the tune?


No, it will not work correctly without a tune.
jasaero wrote:
GreenDieselEngineering wrote:
kldaw60 wrote: You know if you're not going to sell a tune for this I wish you would come clean so I can look elsewhere. It seems that nothing is being said on your end about the time frame as of late. I can understand testing your product but you can't tell me with all the data you have on the Liberty 2.8 that something would not be ready after almost a year and a half. If it's a deal where your needing more market people to make the release more affordable and appealing for you then I would say this tune may never make the market. This is a new diesel I understand that but you can't wait for the market to catch up with you. In other words be honest with people up front about whether there is actually going to be a release or not. Thanks for your time


We are going on our altitude validation trip in CO late August and hot weather trailer tow testing in AZ. After that the tune will be finalized and ready for release in September. Past data on the Liberty is useless on the Colorado as the ecm is different and the hardware is different. We take our time and get it right. We are also working on the larger Dmax congruently, so that slows us down a bit.


Is the flash tool for delivery decided on yet?



Same tool we use on several of the other diesel vehicles we tune. It works on the 2016 no problem, we need to test it on the 2017 due to GM making some communication changes on the OBD port.
Teddy wrote:Sorry for being a noob, but I had a couple questions about the ECU tune.

Does this tune allow me to remove the DPF?

It says it disables the swirl motor, does that mean I don't need to do the resistor mod?

Thank you!


No need for the swirl resistor with the GDE tune. The base tune is designed for factory exhaust systems. Call if you need something special.
kldaw60 wrote: You know if you're not going to sell a tune for this I wish you would come clean so I can look elsewhere. It seems that nothing is being said on your end about the time frame as of late. I can understand testing your product but you can't tell me with all the data you have on the Liberty 2.8 that something would not be ready after almost a year and a half. If it's a deal where your needing more market people to make the release more affordable and appealing for you then I would say this tune may never make the market. This is a new diesel I understand that but you can't wait for the market to catch up with you. In other words be honest with people up front about whether there is actually going to be a release or not. Thanks for your time


We are going on our altitude validation trip in CO late August and hot weather trailer tow testing in AZ. After that the tune will be finalized and ready for release in September. Past data on the Liberty is useless on the Colorado as the ecm is different and the hardware is different. We take our time and get it right. We are also working on the larger Dmax congruently, so that slows us down a bit.
The EGR and swirl are both turned off, so no more soot entering the intake. The oil is from the CCV system, nothing a tune can to for that. However, if you stop the soot, then the oil passes through harmlessly. Custom requests have turned into tune options over the last couple years.
T-Mills59 wrote:Would it be beneficial to have the high Idle function activate at a higher outside Ambiet Temp? I ask this because I leave in a southern state with usually mild winters at best. Occasionally the temperature reaches the 36 degrees required but the temperatures are usually slightly higher for a majority of the winter. I am still interested in the High Idle as I do not want to run my engine cold. Would it be advisable by you (GDE) to recommend or possibly set the Ambient Temperature interlock a little higher. I was thinking somewhere around 46 Degrees.

Thanks


We could do a custom tune for your vehicle. At your outside temps, the high idle is not really needed.
JD915 wrote:My truck does not have the integrated trailer brake installed, but I'd like to add it in the near future. I know a re-flash of something is required to have it function properly. Question: does anyone know if this re-flash will affect the Hot Tune? If so, what options do I have, as I do not have a stock ECU. Thanks.


The update to activate a brake controller is a different module in the vehicle and will not affect the GDE tune.
With a GDE tune the fans will run after shutdown if shut off during a regen.
Only applicable with the GDE tune. Try it on the stock tune at your peril.
We hope to have it ready for the market in 3-4 weeks. It will include a turbo, clean air tube and engine tune for $3800. Figure about $1000 to install at a shop of your choice. We will get the power-torque data posted on this forum next week.
A failing DEF injector could cause high DEF consumption, not a very common issue though.
On the ECODiesel you can run distilled water during summer months, just don't have it in your tank when temps fall below 32 F.
If you are not see temps higher than 220 F, then the t-stat is still working. Most t-stats fail open and lead to cold running in winter months.
 
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