Automatic Shifting Problem

[Mystikx]

Hello there,Brief overview : I have only seen this problem once on this boards and it was not solved, give it another shot. I purchased a 93' SE coupe that had a shifting problem, figured i'd luck out and it would be an easy fix : WRONG.

The transmission shifts when it HAS too , not when it's supposed too. IT shifts at 6k revs everytime; no matter what gear. Now i went to the local mech and was told it was either speed sensor or solenoid , so to save money and tackle both cases i purchased another transmission that i knew WORKED, although the problem still occurs.

Now i than assumed perhaps it could be the speedo , it's a HUD and since i bought the car is had dimed in and out ; but i have seen it work. Therefore i'm going to give it a shot tom (i have analog) but i don't think it will solve my problem.

Although 5-speed swap has been in the back of my head the funds are not readily available at this time and basically want a daily driver .

What is fking wrong with my car... lol please help ...

This solution fixed someone who had the exact same problem :

" :It's the TPS. was throwing 2.68V at closed throttle as opposed to the 0.4 expected. Just got a replacement, gonna swap it in a little later, I'm tired as hell.Check the voltage on term 20 on the ECU (NOT atcu) to ground, see if it gives 0.4 at closed throttle and 4.0 at open and ranged in between. Sounds like you're having the same problem as me.And driving with the bad tps disconnected was fine. Obviously it shifted based on the charts in' the fsm rather than pedal pressure, but otherwise performed beautifully. "

He states he disconnected his TPS , where exactly do i disconnect?

[240DrpTop]

Mystikx, Read this thread. especially the part about, dis-connecting your rev sensor.It also tells you where your tps is located.Good luck!zerothread?id=96505

[MXMOVRDV]

Well glad to see someone else having this problem. Read the thread completley and your problem will(should) be fixed. It fixed my problem.