[shorod]

Sounds like a candidate for a good tune-up. Replace plugs and wires, add a bottle of fuel injector cleaner to the fuel tank, replace the air filter, spray out the throttle body with compatible cleaner (I believe Ford has a sticker on the '94 stating not to use cleaners on the throttle body because it has a special coating to prevent carbon build-up, etc.), and change the fuel filter.

-Rod