why i hate automatic transmissions...

[whatnot]

Yes thats the RPM input into the TCM, but that isn't really used for shifting, as critical as the TPS is.

I can't remember exactly what mine was doing but I thought it was something similar to the problem the OP has. I think it ended up being a wire to that sensor pinched between the engine and trans. (happened after I changed the engine)

 

[Burning oil]

If the internal spring snaped back and the tps is at full relaxed position the TCM will not reconize 0 volts and will only show on a scanner a defaulted #. You need to slighty load the tps and put tension on the tps spring until it reads something like .5 volts.

 

[OrionThade]

I have a TPS that will be going unused that I pulled off a 6.2 I bought last year. It's yours if you want it, but not sure how quickly you need it.

 

[Missy Good Wench]

There is also an output shaft speed sensor. This tells the control module that the thing is moving.

Now if the speedo is working then likely its ok.

Missy

 

[bison]

Would be nice to know what symtoms you had prior to and/or the reason for replacing that tranny.
l would have a good look at the wiring and tranny pass trough connector.
And maybe it is a "faulty rebuild" issue.
All solenoids can be tested for ohms and working at the connector as well.

 

[Burning oil]

I have a TPS that will be going unused that I pulled off a 6.2 I bought last year. It's yours if you want it, but not sure how quickly you need it.

6.2 tps I believe have a different connector. Might be able to depin it and put 6.5 connector on it?? Got a picture of it?

 

[OrionThade]

6.2 tps I believe have a different connector. Might be able to depin it and put 6.5 connector on it?? Got a picture of it?

I'm sure I could arrange a pic tonight when I get home from work.