12sec.5.3

iTrader: (1)

I'm trying to get these shift points where I want them but it's not shifting at the "set" shift point. Currently 2-3 shift is set at 6350 and vss shift is set at 73mph but i'm bumping the rev limiter at 6800 and going past 85 mph before the shift. Anyone know what causes this?

BlackGMC

iTrader: (31)

what is your MPH at 100% PT set at and what is yorur WOT MPH set at?

12sec.5.3

iTrader: (1)

Parameters (D0915-D0917) set at 73 mph. That's WOT 2-3 normal, performance, and hot.

BlackGMC

iTrader: (31)

What rpm is 73mph for you in second? Post up your Gear ratio and tire height

12sec.5.3

iTrader: (1)

73 mph in 2nd at wot is 5850rpm's. That's with 3.90's and 28.5" tires. 295/45-18 toyo's.

12sec.5.3

iTrader: (1)

From looking at logged runs I should have the vss setting at WOT at 84mph which is 6550rpm's. It's set at 73 and still shifts late so I'm not sure if that would make a difference. Maybe the vss shift is set too early and is throwing the computer off.

BlackGMC

iTrader: (31)

I am assuming this is on a 4l60e. What is D0902 the 100% row set too? Wanna post up your tune, that would make this alot easier? What gears and tire size are you running.

kbracing96

iTrader: (26)

Log the pid showing what gear your in and see if the PCM is commanding the shift and the trany just isn't doing it. You could have transmission problem.

12sec.5.3

iTrader: (1)

What is that PID called?

kbracing96

iTrader: (26)

"Current Gear" I believe