TravisA

iTrader: (4)

On the OBD-1 computer it has a 5 tables for the tcc engage and release. Which one between normal and perfomance does the camaro use? I know the T/A had the performance button but I've read the camaro uses the performance table all the time?

If this is true this would explain why my TC is locking under WOT after about 95+ mph. I had went in and changed just the normal mode to 255 and thought that would do it. But after a trip to the track it would still lock about the 1/8th mile mark which is around 95 MPH and that's also what the TCC perfomance engage table was set at.

I'm going to go in and set it to 254 release and 255 engage and see if it helps but I was just wondering if anyone knows for sure if it uses the performance table or not?

Thanks
Travis

Formula350

iTrader: (3)

I'm not sure about locking up, or the PCM version, but my 93's stock tune won't unlock after 86mph. But that's a bit vague as in: Will it lock up @ WOT after 86mph, or just if you're doing over 86 and punch it, that it won't unlock :\

Sorry. I'm sure this is of little help, but figured I'd add that anyways in case it is.

TwoFast4Lv

iTrader: (8)

Z28 uses normal tables do your work there. I usually copy to Perf table just to cover bases

Karl Ellwein

Tuner Cat has a "force lock at WOT" table, (or words to that effect). Ed Wright found it and perfected it and showed it to the Tuner Cat guy a few years ago.
Do you see that table in your version?
TooFast is correct. It's the "normal" table to look at.
But if someone tuned your PCM for WOT lock-up and your software version does not have the force WOT lock table then you won't be able to tune it off/out.
If you have TunerCat it should be in the latest version.
Karl Ellwein

TwoFast4Lv

iTrader: (8)

You are correct it was not in our version in 99 when we started but is now. Ed has been a great help over the years I wish he could have made it to the shoot out

TravisA

iTrader: (4)

Yes I just looked and I have the TCC WOT Forced Lock Speed Threshold Vs. Gear. Looks like mine is set to lock @ 90mph in 3/4 and unlock at 85.

Its not tuned in the normal table to lock so could this be causing it then?

Thanks everyone for the help so far!

bobdec

Travis, in response to your OP, I installed the performance button mod in my '94 z28 and routinely switch between normal and performance. I can say without installation the switch mod the '94 uses the normal tables.

Karl Ellwein

Yes Travis, that is exactly the spot to take away the WOT TC lock. Set that to lock at maybe 120mph.
Karl

TravisA

iTrader: (4)

Thanks Karl! I appreciate the help!