TT and 7AT P0744

tower74

Not that's something I don't want to hear. My car (7AT) does the same thing when everything is cold. I will get an uprev from 3rd to 4th. It will still shift from 3rd to 4th, though. It only does until everything gets warm. After that I have zero issues.
I just got a new tune today for the tranny and I can already tell the diffrence when it shifts. Now that might be another story when I drive it in the morning.
Do you get a clunking noise when you let the car down shift into 2nd? Mine doesn't do it all the time but it's the opposite. It only does it when the car is warm.

W.O.W. 370Z

Jason(Jnaut) who installed the TT and Jack from HP Logic said there was no way to do anything to help with the shifts on a 7AT through Uprev. I knew they were incorrect.

They refused to listen to me. They were very wrong.

On top of that HP Logic charged me $380 for a 20 minute retune.

Car is at Nissan now.

kosstick

It is just increased transmission line pressure.. not really a "tune" it is very straight forward but effective.. Im assuming when they hear tune they think changing shift points and all that stuff

W.O.W. 370Z

Well as a certified Uprev tuner I would think they would know what I meant or at the very least ask for clarification.

SharpByCoop

I don't know the specifics, but from what I've learned there is not a simple 'line pressure' increase through the Uprev software. (5AT experience).

You have a set of complicated numerical tables under the Torque Management window and they have to be tailored to the shift points and HP.

My own trans is awaiting a new TM set of numbers. Pat (Level Ten) just explained to me this morning that line pressure alone will not do what we need.

Someone with more experience than me can correct me.

Coop

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Jim Cooper - (Retired: '08 Infiniti G37 Sport • TheShopCT built • 11.13 @ 123 mph (click for vid) • GTM Stage II Twin Turbo • 5-speed A/T Level Ten built • 591whp @17 lbs boost)

tower74

Wow they charged you to fix their problem? That's not standing behind your product or the guys doing the tune.
Damn that sucks. I would call Uprev and ask them. I always hate it when someone says there is no way to fix something. It just tells me that they have thrown their hands up and said I QUIT! No thanks...there is always a fix for a problem. Good luck and hope it doesn't cost a small fortune for you.

W.O.W. 370Z

Lets see what happens...

I am currently in process of looking for a new tuner. I went to closest option and got burned. I know I am not the only one on the forum who got burned by them.

It is what it is.

tower74

Same thing here with the tuner I went to have my system installed. Guess I should of looked at his shop a little closer and seen that the only thing in his shop was mustangs and other domestics.

SharpByCoop

When you use the term 'uprev', although it's specific to shifting, it's misleading to the tuning company. In another thread I had NO idea what you meant. Now I see you are talking abut a slight RPM increase?

Got it. I like the term RPM flare.

Coop

__________________
Jim Cooper - (Retired: '08 Infiniti G37 Sport • TheShopCT built • 11.13 @ 123 mph (click for vid) • GTM Stage II Twin Turbo • 5-speed A/T Level Ten built • 591whp @17 lbs boost)

tower74

Well problem appears to fixed with the "rpm flare". To be honest it was UpRev/STS who helped fix the issue.

ANMVQ

+100 for wha Coop said, My tuner( kaizen) Just tuner my car last Saturday and had to change all the TQ managment tables with UPREV.. What did the dealer say, Being FI I'm sure they are not warrentying the car, Or are they??

Coop the Subi guy at Kaizen says Hello, We where talking about your car when my car was on the dyno.

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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

tower74

Nissan told me the same thing. They will not touch a thing on my car because I FI my Z. They will however still change the oil but as far as issues. It's my problem now.

weiboy718

guess i'm pretty damn lucky! they just warrantied my timing sprocket gasket cover this morning and no questions asked lol.

tower74

What did they say was wrong?

I had the whole shop under my car with flashlights looking at my set up. That's when I asked if any of my parts were covered. At the same time they have to prove it was due to the FI in order in deny the claim. I guess if I ever blow the damn thing up I can simply rip out the system real quick and put it back to stock and take to a diffrent nissan dealer

weiboy718

it was leaking oil from the timing sprocket cover, they knew i was F.I'ed and no issues getting some parts warrantied but i'm pretty sure they will not cover the engine if that ever blows.