What s wrong with my 2000 Glx vr6 2.8?

EPC stands for Electronic Power Control. Could be any number of sensors in the power train or the throttle system that's causing the computer to switch to a limp home mode. That's why you have no throttle.

Get the fault code read out and come back to update the information with the codes. I'm sure your VW has some codes stored.

Without knowing the DTC. It could be anything from any sensor on the engine, transmission or even the catalytic converter has restriction or completely clogged up. Have a repair facility check the vehicle out.