Hey folks. I have a 95 GT with an automatic transmission. I recently started having problems shifting. When I am going at partial throttle, the car will hickup when shifting from 1 to 2 (kinda feels like it is either going into neutral then back to first or all the way to second and back to first, but happens too fast for me to really know what it is doing). After the speed/rpms go up a little more, it shifts fine from 1 to 2. At WOT, the shift is fine. When decelerating, the transmission will wait too long to shift from 2 to 1 -- usually it will do it at 300-400 rpms and nearly stall the car.
The shift is determined by vehicle speed (VSS) and TB position. RPM is just a by product
I had searched and saw that some people have said that the MLPS (trans range sensor) will cause strange shifting problems.
That would be the first place to look.
KB 2.1L @ 9psi, FRPP M5400-A Suspension System, FRPP Aluminum D/S, Built AODE and TC, FRPP 3.73 Gears, Balanced Roller Cammed Engine, Edelbrock Performer Heads, Comp 270AH cam, AEM EMS, 3.5 Bar MAP, Zeitronix ZT-2 WB, FRPP 70mm TB, modified UPR CAI, Be Cool Aluminum Rad