[newoldguy]

If the car has been sitting for two years, and I'm assuming no gas treatment (i.e. Stabil), I would be concerned that the gas has "gone bad" and has clogged something along the way--fuel filter, injectors, all of the other stuff the guys have mentioned. In this case, you would have to start at the gas tank, drain it all out, and start cleaning stuff toward the working end.

Basically, its bad for gas to sit---even over the winter without a "treatment". This is true even for lawnmowers and such. You should always start the season with fresh gas.