trans issues!

[Mike Marnik]

Ive been messing around with this automatic transmission all weekend. About 2 weeks ago the TCU ate the dust and is completly shot. So a friend of mine let me borrow a tcu and it did screwy things; shiftpoints were way off and it would randomly downshift then upshift and it shifted very hard. so i opend it up and it looked to have some cap damage starting. So I borrowed a manual shiftbox from him also, made by foreignmuscle.com. i installed it it worked great then i tucked it up under the dash where the tcu was, and started her up and no dice back in limp mode. So today I finally got a new tcu in (used in great shape). It works but now it wont start out in 1st i have to manually shift it into 1st and after that it wont shift into 2nd by moving the shifter i have to go to neutral first then put it back in drive. In drive it will start out in 2nd and shift to 3rd but as far as i could tell wouldnt shift into over drive but i never got above 45mph. It is also downshifting quite harshly. The transmission is completly stock and I havent done the bluewire mod. Im beat and usually dont get beat by cars but im also new to autos. It worked perfectly with the old tcu untill it died.

 

[GDNF2ET]

Check this fuse in the car..
(4A/T)
(BOITE AUTO)

 

[Mike Marnik]

did that a long time ago and several times after that. i wouldnt have been getting anything but third with that blown. and with the shift box it doesnt use that fuse. however i rewired in the shift box yesterday and it is working fine now. i dont know if in my exhaustion/fustration i looked over something or wasnt checking correctly to see if it was working right or not but not it works. However i think there may still be an issue with my tcu as its still no operating the trans correctly.