insanity
your fuel pump is a good place to look if its worn it will cause this type of problem
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.
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
Have your brake system checked immediately! (by a proffesional)
Corrupt or missing driver or failing hardware.
Check fuses
Leak on drain line above floor level
Short in the wiring or the radio itself.
Low battery, bad connection or starter.
Running out of gas, timing chain breaks.
water in the fuel can cause an idling motor to sputter and/or die.