Hi, I have a 1993 Ford Escort LX 1.9L. It's a great car and has no problems except for one thing. Whenever I try to accelerate it does fine unless I'm demanding some power from the engine, in which case, I actually lose power and and it sounds almost like a piston stops firing or it's starved. My aunt works for with auto parts and said it might be my fuel pressure regulator. I replaced the fuel filter, plugs, etc. but haven't replaced the regulator yet. Before I did this I wanted to see if anyone might know what this problem is. Whenever it acts starved, I have to down shift otherwise I can't make it up big hills. My parents have a hybrid with a 1.6L engine and a heavier car and it has more pickup and go than my 1.9L. I've been stumped with this mystery for quite awhile. Any help would be greatly appreciated.