If it comes back it could be wiring but usually it is just the sensor itself.
To add trans fluid you use a funnel and pour directly into the tube the dipstick is in. You'll need to wait a minute or two for the fluid to drain out of the this tube because is will get all over the dipstick when checking fluid level making it difficult to read the correct fluid level. I pour fluid in while it is running since you need to check fluid level with the engine running.
I'll list a few things that could cause like a hesitation at full throttle.
Low transmission fluid level ( enough fluid is required to propel the vehicle)
Fuel restriction or low fuel pressure could cause this but is usually more noticeable when accelerating (all acceleration) not just full throttle.
You could have some exhaust system restriction
The transmission fluid level seems the most logical at this time.
Because this only an issue when accelerating at full throttle I don't really see a significant issue not to drive the car.
Saturday, January 17th, 2015 AT 11:15 AM