insanity
your fuel pump is a good place to look if its worn it will cause this type of problem
if a bee landed on your nose.
Most likely cause would be the floor has a moisture problem or the floor was not level when it was installed. There is always a chance if it is fairly new that it is defective.
Brakes.
A bad connection would cause a forklift mast to suddenly or slowly lower. Check all your connection wires to ensure they are properly attached and working.
Have your brake system checked immediately! (by a proffesional)
well if the throttle isn't getting gas to the engine it would suddenly stop because of no fuel. On the other hand if the faulty throttle is like some of the Toyotas lately and gets stuck to the floor, your car would suddenly work way too well! :o
Corrupt or missing driver or failing hardware.
Check fuses
Leak on drain line above floor level
Low battery, bad connection or starter.
Short in the wiring or the radio itself.