The TCM sets the shift points. Changing it for the caddy unit might result in a not so good set of shift points for the sol's 4 cylinder.
I'm betting that BMW is right and that all you need to do is to jumper the connector correctly ahd hook a proper shifter to it.
No change to the TCM at all....
Here is an article about some of the 5L40E's capabilities...it's impressive.
http://www.skyroadster.com/forums/ar...hp/t-7954.html
Me
Quote:
Originally Posted by
Cobalt_SC
Now assuming the manual shift is not programmed into the Solstice/Sky TCM, do you think itwould be possible to swap a TCM from the CTS to the Solstice/Sky? If all the ECU provides the TCM is the engine speed, I don't see why it couldn't happen.
I am just wondering if there is a way to tune just the TCM without messing with the VIN. Psykostevo said HP Tuners has completely locked the automatic VIN's from even working. He can't even touch the ECU.