2014+ Engine & Transmission Tuning

[bboyce536]

What's the consensus on tuning a leased vehicle? They won't look into that upon lease return will they? I cannot stand the drive ability of this truck currently. Really just wish I could return the lease now.

[Greensmob]

What's the consensus on tuning a leased vehicle? They won't look into that upon lease return will they? I cannot stand the drive ability of this truck currently. Really just wish I could return the lease now.

I have tuned, modded, cut, and welded every lease vehicle I have ever had which is many. My last lease was a twin turbo, fully built trans Dmax, luckily I had a buddy buy it out at the end so I did not have to return it to stock to take it back.

[fondupot]

What's the consensus on tuning a leased vehicle? They won't look into that upon lease return will they? I cannot stand the drive ability of this truck currently. Really just wish I could return the lease now.

 

My last car was a lease. I lowered it and did some easy mods. but upon trade in the dealer bought me out of my lease. So I didnt have to worry about taking my mods off.

 

My truck is also a lease, Ive tuned and installed catback exhaust. I kept the stock exhaust all in one piece tho, so I can go back to stock in a matter of minutes for the tune and about an hour or two of time to put the stock exhaust back on.

[sugarjohnson]

Just looking for some piece of mind. I currently have a Diablosport Intune on my 14 6.2L max tow 3.73. I received a new TCM calibration since mine wasn't supported yet. I am running the diablo tune with DOD off. The only other setting I changed is trans shift to firm. I have to say for a canned tuner the truck runs very well now. I did notice the firm shift tune causes the truck to stay in gear longer and it does not race to get to the lowest gear possible like stock. I was impressed as it works well this way for towing my TT. More power when you need it.

 

Only thing I get nervous about is you can hear some of the downshifts now. To be clear I just hear positive clicks, not clunks and you can't feel it. I have always been told it's better to have a firmer shift then a soft for tranny longevity. Am I just paranoid about hearing it engage?

 

Feedback welcome.....

[TXS Heat]

question of the day -

dealership is modding my tune to account for the 33's i am running. This should show up on the counter but does it show up specifcally for adjustment to the tires on the counter/tracker?

[TJay74]

no one knows for sure what GM can see, I am thinking if they read the entire ECM/TCM and they compare it to the stock calibration they will see every change we make.

[KARNUT]

Some one needs to come up with a way to fry the computer, engine troubles fry the computer. Not something I would do of course.

[CAtaylor]

Some one needs to come up with a way to fry the computer, engine troubles fry the computer. Not something I would do of course.

I can ask my dad, he did my sisters toyota installing a security system, ha! Only takes ohming out the wrong 2 wires and she is dead. These things are finicky now.

[480Ruger]

BlackBear in Charlotte, Dec 4-5

 

http://www.gm-trucks.com/forums/topic/165428-black-bear-charlotte-nc-dec-4-5-2014/

[Isriam]

they aren't going to see the actual tuning parameters, they will only see that it was flashed. thats the issue with "gm can't see the tune" being said in this threads. its not totally true for what people think at first.

 

also, this applies to cell phones and flashing custom roms. usually though no one cares and will allow warranty work.

[scott19677]

no one knows for sure what GM can see, I am thinking if they read the entire ECM/TCM and they compare it to the stock calibration they will see every change we make.

Hey, remember GM stands for Govt. Motors now. THEY SEE EVERYTHING... Just kidding, I would really like to know myself. I really want to get a tune but Im just a little skittish since Ive had so many problems. I just want to turn off V4 and tune out some TQ management. Nothing major.

[BBRU]

Hey, remember GM stands for Govt. Motors now. THEY SEE EVERYTHING... Just kidding, I would really like to know myself. I really want to get a tune but Im just a little skittish since Ive had so many problems. I just want to turn off V4 and tune out some TQ management. Nothing major.

Me too, and take the speed limiter out as well.

[cbprov]

I bit the bullet and bought a hypertech max energy ,totally diff feel to truck now .better on fuel to

[pkpouttu]

I bit the bullet and bought a hypertech max energy ,totally diff feel to truck now .better on fuel to

 

What settings do you have yours on?

[12amrdr]

On our 14 Sierra, the biggest gains were inthe throttle response. I felt the factory throttle cal was about the worst offered by GM ever, and after some fine tuning, we were able to make the throttle much more lively, and we offer the end user further adjustment to make the throttle response work to your liking

 

Theres also a solid 20 rwhp/20-25 ft-lbs in the tunes...

 

Our tunes can't be seen by the dealer either ;)

i know this is old but its sad to me you lie to the members here to sell your garbage can tunes. Any changes made to the ecm calibration can be seen on these trucks. the dealer can see anytime the computer is flashed.