You guys are going to like this!
Thanks to funkymonkey1002 for suggesting that I try a baja with sportshift tcm. I stayed late at work to do some stuff to my suspension, and decided to plug the Baja TCM in and see what DTC's I would get.
I was expecting the turbine speed sensor to throw a code, because there is a ground wire for that sensor that goes to the Baja TCM according to the wiring diagram, and my car does not have that ground wire to my original TCM.
So, I plugged it in, removed the AWD fuse, checked for codes, none... started the car(fingers crossed), no lights on the dash, no DTC's stored, checked the current live data using the ssm3, everything seems to be reading right. Put it in Drive, and the wheels speeds are close enough not to make the AT light or check engine light come on:woohoo:
Drove it home with no problems, 25mi later. No lights on in the dash, no abnormal driving behaviors, I would have to say at this point that it is plug and play. You can see on the pictures of the ssm3 screen, that the sport shift controls also show up in the data log, very cool. I will be trying to get that to work as well in the next few weeks.
I did lose the gear indicator in the instrument cluster as there is a communication wire between the cluster and the TCM in my original wiring harness, that now goes to something else in the Baja TCM. No biggie, a Baja cluster may fix that, would have to check the wiring diagrams to see if anything would need to be changed.
Also the transfer duty cycle changes normally during accleration, and it seems to take off, and shift better now as well(Although that could be in my head). When the track opens back up, I should be able to tell.
Before with the AWD fuse in the transfer duty was at 0 unless I pressed the switch I had installed and then it went to 100%
So far so good!
As for the high res pics, I will try to get some of those soon. I also want to open up my original TCM, I half-expect it to be very similar. I was able to get some numbers off the big chip: 64F7055F40
Which leads me to believe that it is a SH7055 chip, which could be a good thing because the earlier WRX ECM's used that chip, I believe. I googled the number and it came up with a bunch of threads.
Will update in a few days after I get some more miles on it.
. If you follow the exact directions on the 25RS forums, instead of locking the clutchpack, it unlocks it on our cars without any lights or codes, maybe a valid option.
