where is the ECU located on my 07 yukon denali 6.2

chucksrt · April 2, 2015

I am getting ready to send my computer out to be reprogrammed but i do not know where it is.

Jennabear · April 3, 2015

You have an ECM and a TCM in your 07 Denali. Are you only getting your ECM tuned?

chucksrt · April 4, 2015

I have only looked into the ecm. I will be honest i love all of your customer reviews but i have never used you guys and i could not find info on the benifits of a tune from you. The company who did my last vehicle claims 30hp and 30tq. I was told that submitting my ecm will give me the above mentioned performance increase and will also firm up the shifts along with other things like removing torque management. I would love to get more info on what you guys offer for my application. I am not fixed on any one company, i am just looking for the best tune for my vehicle. i do love hove involved you are on the forums! !!

Jennabear · April 4, 2015

30hp is possible with supporting mods and proper fuel, but that is on the high end of the spectrum. Every vehicle is different due to engine, driver, mods and most important gas (quality and octane).

If you go through with a tune, I highly recommend getting your 6spd tuned, as you are missing out on more than half the benefit without it tuned.

Sounds like you are getting an off the shelf tune, which will not account for all the factors above. It would be hard to hit the numbers you were quoted without some custom data analysis.

chucksrt · April 4, 2015

I always use 93 octane fuel. would it help you if i had the vehicle dyno'd with a/f prior to installing your software For a baseline? I do not think that the company that i dealt with in the past deals with the tcm. I will email you to get the specifics of what you do and what to expect. thanks for all of your time.

chucksrt · April 5, 2015

Email sent! Thank you!!!

Jennabear · April 7, 2015

I always use 93 octane fuel. would it help you if i had the vehicle dyno'd with a/f prior to installing your software For a baseline? I do not think that the company that i dealt with in the past deals with the tcm. I will email you to get the specifics of what you do and what to expect. thanks for all of your time.

It would be tough for you to dyno a Yukon Denali XL, I know this as I have one as well. But either way, with the logging equipment we use, dynos are not needed.

chucksrt · April 8, 2015

It would be tough for you to dyno a Yukon Denali XL, I know this as I have one as well. But either way, with the logging equipment we use, dynos are not needed.

What makes it tough to dyno? Is it because it's AWD? If so I have a shop with an AWD dyno local to me. I would love to get some baseline numbers so I can just see what type of gains I am getting.

Jennabear · April 8, 2015

It probably is not long enough. Most AWD dynos are for Subarus and smaller vehicles.

chucksrt · April 9, 2015

I have a truck shop within 5 miles from my house that has one. I just haven't priced it yet.

Jennabear · April 17, 2015

Can they fit your vehicle on it?

chucksrt · April 19, 2015

I haven't had a chance to talk to them yet. But it is a truck repair/performance shop so i am optimistic. Things have been crazy. I will be ordering your tuner kit very soon i am waiting to get a windows based labtop first. (All i have are mac computers that aren't compatible with your programmer)