I am dynoing 355whp on my 5EAT did a pull 1-4 letting off after shifting into 4th. I threw three codes. MAF which I have a new larger housing for mine, a vacuum leak.... haven't taken a look yet, and P0171 TCM MALFUNCTION. Any ideas? only happened under full WOT not sure where exactly that code kicked in but kinda scary since I have a built transmission and do not wanna F it all up.
Just a heads up guys my trans filter seemed to back itself out and leak out my ATF so just a word of advice take the 5 minutes to pull your battery out and make sure ur filter is snug.... and if you have some miles on your car why not be nice and change it.
I really hope we can all figure this out and get this going. i would love to be able to tune my TCU would just make having a 5EAT with sport shift 100% more amazing.
I tried connect using freessm it wouldn't let me idk if it is cause I was using a tactrix cable or what.
EDIT: after going back through the pages and re reading some stuff I see the Tactrix cable doesn't work. I was wondering if someone could just confirm that this is the cable I need..
http://www.alpha-bid.com/vagusb.html
In my specific situation. I have had clutch packs cryo treated and valve body ported. But if I put it in sport and then smash it to the floor it can not think fast enough to shift before it hits red line then hits face and kinda dies then picks back up.