Hi my name is John.
What year,model and engine do you have?
If you have a 41te transmission the solenoid pack is bolted on the side of the transmission.
When it act up it can cause the transmission not to work at all.
Do you know what code you have in the TCM?
Which engine do you have?
The torque converter sensor is part of the solenoid pack that is bolted to the side if the transmission.There is know torque converter sensor on the engine.
I would go some where else to have my transmission work on.
Here a picture of where the solenoid pack is on the transmission ( this include the torque converter solenoid in side of it)
Ask them for the code they are using to come to this answer.
Let me know
The TPS can cause it to shift funny some times,but I would test for the code first before replacing it.Does the car idle go up and down?
Will the car rpm go up and down while driving down the road say at 50 mph,200-3--rpm?
As him for the code number he is using to come to the answer.
I can see what need to be done for you
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Thank you for choosing just answer