Trying to resolve the last bug before putting it on the track for the first time this weekend...

Under normal throttle and cruise it shifts great, the problem occurs on the 3-4 shift at 100% TPS...

It wants to shift into OD well before its being commanded.

My WOT shift MPH is:
1-2 @ 56mph
2-3 @ 95mph
3-4 @ 130mph

All WOT RPM shifts are set to 6000 RPM just for simplicity's sake and so its easier to watch on the scanner... And yes, I've held it in 3rd with the VCM controls and it will still shift into 4th... And the shift kit was setup with the gear command option...

Just trying to make it stay in 3rd through the traps... And keep the converter unlocked through this whole thing.

 

you and this dern truck..
Wish i could help, but i dunno how.

 

log to see if its being commanded, or like a tranny problem. Like PCM commanded versus just the tranny shifting. And hope that the pcm is commanding it.

 

mine shifts right about 90% of the time..
This is how I have mine set-up....


ALL mph tables for WOT are "0"ed..
The last two rows of "part throttle shift" table (94 & 100%) are also "0"ed.
all adapt crap is off....

 

I'm going to try that right now (out tuning LOL, I'm on the 'berry)

Where is the 'adapt' stuff you're referring to??

My part throttle (94-100%) was really low, hopefully this fixes it.

 

desired shift time set to "0"... Dude, you should ditch the 2000 pcm and get the 2001-2002... you gain a bunch of trans tables, among other things...

 

I used my 1999 PCM and flashed in a 2002 tune the 12212156 OS, then did the COS3 thing, truck ran just fine on it.. then i put it on the shelf in the reloading room incase i need it one day. Put the 2002 back in there.

 

That's interesting....I saw no difference in any trans setting capabilities on EFI live with the 02 OS swap.

 

Thats because efi sucks

 

I'm going to soon enough... I'm gonna have to, I'm getting a good bit of false knock from this 2000 BS, going to have to work with what I've got for now I suppose

And all my desired shift times are set to 0.300... Ill lower them to 0.100 and see what happens first...