Allow TCC lock during shift.
Originally Posted by gojo
What is the difference when selecting true or false?
"A4 TCC Tab - Allow TCC lock during shift:
This determines whether the TCC can be locked through a shift (if locked before) or if the computer will force disengagement."
I still don't get it.
The PCM does not allow TC lockup in any gear but 3&4. When you're cruising in 3rd with the TC locked up and the PCM commands and upshift into 4th, the PCM disengages the TCC, shifts to 4th and then locks it back up. That specifies to keep the converter locked on the 3-4 upshift. Only time I can think of why you'd want to do that is if you want to lock your converter at WOT in 3rd and allow a full throttle 3-4 gear change.
Originally Posted by MyLS1Hauls
The PCM does not allow TC lockup in any gear but 3&4. When you're cruising in 3rd with the TC locked up and the PCM commands and upshift into 4th, the PCM disengages the TCC, shifts to 4th and then locks it back up. That specifies to keep the converter locked on the 3-4 upshift. Only time I can think of why you'd want to do that is if you want to lock your converter at WOT in 3rd and allow a full throttle 3-4 gear change.
Originally Posted by Ed Blown Vert
What is the default?
Last edited by gojo; Jun 21, 2004 at 11:56 PM.
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Originally Posted by Brains
I don't think this works on the 98's w/ LS1Edit ... I have this set on the g/f's car, and it will still unlock, upshift, and re-lock ..
I'll try it tomorrow.
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Originally Posted by gojo
Ive tried locking the converter at WOT in 3rd, but could not get it to do it. Is that because my setting is false?
Originally Posted by MyLS1Hauls
I dont think thats why. You probably don't have the parameters for lockup just right.
The reason why I asked if a true setting would cause it to work is that the subject of WOT lockup in 3rd has been discussed before and the conclusion has been a switch is needed to make it happen, so I wondered if we had missed something with regard to the true and false settings.
