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Been watching my desired slip change between 4.5 and 0. All lock up perameters are set to 0 slip. DOD slip dissabled and all dod charts 0. AC on slip at 0.

At first I thought it was the A/C...

Is there a way I can confirm what ECM from the tune file ? I know it tells me when I link to read the file, but its cold out there, the saved file must have it somewhere... ?

2015 chevy Suburban...

Interesting... I would love to hear HP tuners comment on this. Mine seems to be accurate and tunes rather true... that is to say it does what I am asking it. And I have issues right where the graph...

I have had a bear of a time trying to get my head around the upshift / downshift points on a NAG1 in a 2012 Jeep wrangler. I am a novice tuner at best, and with individual tables for everything plus...

I have always had trouble getting my head around downshift points... but I only mess around with tuning every once in a while.

The question is: When I am filling in data points for 5-4 shift,...

I have been reading this thread. I am about to start changing some shift points on a 2012 JK. I am not anticipating having some of the same issues as the truck is otherwise stock. But maybe...

I should also add that when trying to figure this out, one of the first things I did was lock up the TCC and I still had a hesitation/skip so I ignored the TCC tuning for years. It turns out that I...

Vehicle in question: 2011 Silverado 2500, 6.0 gas, 6l90 trans

For years I have been trying to solve a hesitation/chuggle/choppy acceleration issue with this truck (in fairness I go through spats...

Hello,

Working on some basic 6L90 tuning and I getting confused with torque converter lock / unlock speeds. Also some other simple questions that need clarification....

1) TCC Adapt. What is...

After I got close I have been using multiply % - half. I still feel like I am running in circles !

I thought I saw numbers jumping on the table when I clicked "Calculate Coe", but I figured I had been staring at numbers too long. I assume that there are probably quite a few variables that are...

After you correct the VVE table (under "Edit" as pointed out). You then need to do whatever smoothing, then click "Calculate coefficients" and that box will go grey (unavailable). You will also...

Thank you...

I did answer some of my own questions. Math>pressure ratio wasn't logging because I was not logging Barometer in the PIDs. With that added, I now have a working fuel trim histogram...

2011 Silverado HD, 6.0, E78 ECM

Without going into details, this truck has never run quite right... hesitation, bucking, etc. I have been reading/learning and scanning for over a year (made some...

Thanks for the input....

I had a Volant CAI and it made things worse, so its been in a box for the last 4 years.... However, en light of new found knowledge, I pulled it out of the box and...

Here is the log and the tune. On the log "timeline" (at the bottom), you want to watch the last 1/3 of the 3rd incline (probably 4th gear) where the rpms are around 1500 - 1700

There is nothing...

I am chasing down a hesitation, bucking, chuggle, that has bothered me since this truck was new. Its most noticeable around 1300 - 1800 rpm while applying moderate throttle but not enough to kick...

I have done quite a bit more logging and have not seen it... I think its an artifact of the software and not the voltage changing rapidly.

Thanks for the input.

clint

Haha....I hope so.

Yes, you definitely have the shark teeth. I am not sure I understand the reason, but i'll keep loggin and learning....

thanks
clint

The back story is that I have been unhappy with the light throttle acceleration of this truck since it was new. It has been to the dealer many times and they finally told me it was the TCC locking /...

Hello,

Very new to this whole thing... Just received VCM Suite and have started logging/scanning. The vehicle is a 2011 Silverado 2500 6.0L

Please take a look at my log. If you look at the...

Hello,

I am new to tuning... In fact I have not yet purchased HPT, but I am very very close to ordering. I have been reading / researching for about 2 weeks to decide if I am willing to commit...