ok the problem i have is the worst brought it to the dealer they dont know wat to do. when i drive and im coastin and go to accelarate it jerks a lil bit then i was on the highway and the vsa light came on and i could not accerlarate at all had to turn the car off then it was okay any ideas on wat it is

 

Need more details.

what year is the car?
how many miles on the car?

have you checked the oil level? making sure its not low.
at what speeds does this happen?
what RPM's does this happen?

 

It sounds like your car went into limp mode. You probably threw a CEL also. If so, did the dealer pull it for you? Let us know if you find out which code it is.

 

2005 6sp m/t 84k its jersks at any speed but the vsa lights comes on the highway only at speeds of maybe 70 or better and the code said tps

 

Search "app Sensor"

https://acurazine.com/forums/3g-tl-problems-fixes-114/help-my-car-limp-mode-793127/
https://acurazine.com/forums/3g-tl-problems-fixes-114/diy-app-sensor-730958/

 

If you do an exact search for whatever the code was on this forum (code = PXXXX) you will probably find a good place to start looking for the answer to your question.

 

Its the APP sensor. Our cars are dual sensors so when they go out of alignment (some wiggle room) it throws the car into limp mode. APP sensor is (Accelerator Pedal Position). They are $130 at the dealer and its located to the left side of the strut tower bar. This is a reason on the single sensor cars (priuses) run out of control...