Performabuilt Lvl 2 4L60E Not Shifting at Desired Points

[tatasta]

Hello,

I am running a Performabuilt Lvl 2 4L60E in my Procharged 99 T/A. The car is running good and the trans is great but, I can't seem to get it to shift 1>2 and 2>3 at the desired points. Basically, I want it to shift at 5900 to 6000 rpm. No matter where I set the RPM or VSS points, it shifts + 4-5 MPH and 200-300 RPMs over the shift point. I have shift times set to 0.3 seconds on both shifts.

I have attached a tune and log from this morning. It also shows a couple of lean points under boost which I have adjusted for.

In short, how do I get it shift when I want? What am I missing?

Thank you

[minytrker]

How new is the transmission? I have seen ALOT of of bad Performabuilt trans over the years. I'll look at the log later when I have some more time.

[tatasta]

The trans has about 500-600 miles on it.
Thanks

[tatasta]

ttt...

[joecar]

Try setting the shift times to 0.2s (I don't think thi would change it).

[joecar]

Also log these (make sure the pid channel count does not exceed 24):
- TRQENG,
- TSTATE04,
- TSTATE05,
- TSTATE06,
- TSTATE07.

[joecar]

Also try this: set C3906 to 100% from 2400 rpm and up... or set C3901 to max to disable the TPS test.

[joecar]

If the trans is slipping at WOT (the rpm curve in your log says it isn't), then try this: increase D0701 and D0702 by 30%-35%.