Diablo I Tune2 Install 2016 Yukon

[Yukon John]

After a lot of research I bought the I2 for my 2016 Yukon 5.3. I have the Max Tow option with the 3:42 gearing and 2 wheel drive.

After reading the Quick Start, I updated the I2 and did my install. I had just filled the tank with 93 octane so my first install was the Quick 93 tune. I drove a few miles and decided to change the parameters a bit. I now have DOD off, speed limiter off, 20% Throttle boost, 10% Firmer Shifts all gears at part throttle and 15% at full throttle. I advanced the WOT Fuel across the board to 10% and spark 5 deg adv at all wot shifts. The way it's set now I get a nice little "chirp" of the tires with a full throttle 1-2 shift. All shifts are firm but not jarring.

Driving the truck now really is fun...I got rid of the V4 "drone" and throttle response is quick with nice crisp shifts.

One of my gripes was part throttle lag in this truck and the lack of response at low to moderate speeds in normal daily driving. Now when I push the accelerator I get instant response....especially when driving in light to moderate traffic 35-60 MPH. I can give it a little bit of throttle and accelerate nicely without forcing a down shift.

The I Tune 2 gives the user to save multiple tunes and switch from one to the other at any time...very user friendly.

I recommend the I Tune 2 for anyone that wants to truly take control of custom tuning their vehicle.

 

[Weber Dude]

I'm really thinking about getting one of these for my 2016 Yukon XL. Mainly to get rid of the AFM.

 

[MVR 155]

I have done a little research on this product and it looks as if it leaves no "fingerprint" on the ECU when it's returned to stock tuning parameters. Has anyone who actually has one of these tuners set the ECU back to stock and brought their truck in for service where it was hooked up to the computer? I would love to buy one of these but I'm not at all interested if there is any risk to blowing my factory warranty.

I know that on my Audi S4 the dealer can scan the ECU and check the flash counter, if anything other than factory parameters/flash count are detected the car receives an automatic TD1 designation on Audi's network which voids the powertrain warranty on the car. I run a piggyback tuner on that car as it does not plug directly into the ECU or OBD port so I just remove it for service, leaves zero trace. My Z06 is dyno tuned with HP tuners software and it's not under warranty so I could care less.

 

[Yukon John]

I asked the same question of the Diablo people as well as insider contacts at my dealer. I was assured that there are no flash finger prints...so at 1050 miles on my NEW 2016 Yukon I pulled the trigger.

 

[Shadow17]

The fingerprint would concern me too since I am under lease.

Deactivating the AFM is priority #1.
However, I am not sure about most of the other improvements.
The engine performance and transmission shifting really seems spot on for OEM.
I have had several other vehicles where the engine lags or flares shifts and where it seems the manufacturer left hp on the table for comfort. My 2009 Expedition EL with the 5.4l was a dog from factory.
The Denali, at least, really seems to be set up when using high octane fuel.

I mean, being able to chirp the tires in a vehicle this large is awesome. Although I have yet to chirp them into second. lol

 

[Yukon John]

Next to AFM my biggest gripe was low speed, part throttle drive ability. One thing that especially irritated me was turning a corner from a stop and having the transmission up shift to 2nd half way thru the turn. Once the turn was completed and I was ready to accelerate into traffic I either had to wait for the vehicle to catch up lugging thru 2nd or floor it causing a WOT down shift to 1st which was totally unnecessary. The way I have it set now no matter what the engine and transmission are ALWAYS on the right spot with shifting and throttle position. The only way it could be better would be to have a "stick" and a clutch pedal ! LOL.

 

[LGSONE]

I've had Diablosport on two vehicles, My Silverado had a cam AFM delete, custom exhaust... the CMR software did wonders for tuning. Granted it had to be done on a dyno but very nice for the Intune. On my 15 Tahoe I had Diablew do a tune for me using the same software. I ran logs emailed them and then some more and holy smokes. Very nice with a CAI and a high flow Magnaflow muffler. AFM off for sure. I'd have to say it really make this truck much more drivable and great for traffic. I did talk to my dealer about it and they discussed what is required if you have a "hard" failure, engine / trans replacement and the Intune keeps this from being an issue if you turn it back to stock. Now, if you go throwing on a bunch of aftermarket go fast parts, LT headers, etc then they do have a way of really digging in to the ECU. This can be debated until we all lose interest in reading a 30 page long pissing match thread. Bottom line, you play, you pay. Some dealers are friendly to this others not so much.

LGSONE

 

[Yukon John]

I've had Diablosport on two vehicles, My Silverado had a cam AFM delete, custom exhaust... the CMR software did wonders for tuning. Granted it had to be done on a dyno but very nice for the Intune. On my 15 Tahoe I had Diablew do a tune for me using the same software. I ran logs emailed them and then some more and holy smokes. Very nice with a CAI and a high flow Magnaflow muffler. AFM off for sure. I'd have to say it really make this truck much more drivable and great for traffic. I did talk to my dealer about it and they discussed what is required if you have a "hard" failure, engine / trans replacement and the Intune keeps this from being an issue if you turn it back to stock. Now, if you go throwing on a bunch of aftermarket go fast parts, LT headers, etc then they do have a way of really digging in to the ECU. This can be debated until we all lose interest in reading a 30 page long pissing match thread. Bottom line, you play, you pay. Some dealers are friendly to this others not so much.

LGSONE

Well said...if you keep it reasonable then a "reasonable" dealer will be more inclined to work with you. I kind of feel like we all know where that limit is based on how far we want to go.

The addition of a blower, headers, etc....then showing up with a transmission failure warranty claim wouldn't fly far. LOL

 

[WYO-HD]

After reading the Quick Start, I updated the I2 and did my install. I had just filled the tank with 93 octane so my first install was the Quick 93 tune.

In my neck of the woods we only have 91 octane for premium. Can I still use the 93 tune or would I need to add octane boost?

Thank you,

 

[Kpwweb]

After a lot of research I bought the I2 for my 2016 Yukon 5.3. I have the Max Tow option with the 3:42 gearing and 2 wheel drive.

After reading the Quick Start, I updated the I2 and did my install. I had just filled the tank with 93 octane so my first install was the Quick 93 tune. I drove a few miles and decided to change the parameters a bit. I now have DOD off, speed limiter off, 20% Throttle boost, 10% Firmer Shifts all gears at part throttle and 15% at full throttle. I advanced the WOT Fuel across the board to 10% and spark 5 deg adv at all wot shifts. The way it's set now I get a nice little "chirp" of the tires with a full throttle 1-2 shift. All shifts are firm but not jarring.

Driving the truck now really is fun...I got rid of the V4 "drone" and throttle response is quick with nice crisp shifts.

One of my gripes was part throttle lag in this truck and the lack of response at low to moderate speeds in normal daily driving. Now when I push the accelerator I get instant response....especially when driving in light to moderate traffic 35-60 MPH. I can give it a little bit of throttle and accelerate nicely without forcing a down shift.

The I Tune 2 gives the user to save multiple tunes and switch from one to the other at any time...very user friendly.

I recommend the I Tune 2 for anyone that wants to truly take control of custom tuning their vehicle.

Any updates? Do you still like the unit? Has it thrown any codes (as some have reported)?

Also, I have a wifi hotspot / insurance nanny plugged into the OBD2 port as well. Can both devices co-exist peacefully? I get mixed reviews on web searches, so any real-life experience is helpful...