My 90 CRX DX had skippin/hesitation under hard acceleration. If i slowly pressed down the pedal there isn't any. But if I slam down on it, or rev from idle to 3grand there was skipping/hesitation. Also, I looked at my plugs, all of them were just about fouled. and the number 4 plug has oil on it, almost up to the top of the threads. I still have no clue why I have oil on the plug, but there apparently must be oil in that cylinder. Also, fuel pump is good because fuel is coming out of the exit side of the fuel filter when I press down on the accelerator. Last Wednesday I was on my way to school and the car sputtered a then the rpm's started dropping while I had the throttle pressed. So I down shifted, still same (rpm's kept dropping while gas was pressed). So I pulled over. My friend and my dad come eventually, we pull the plugs out and they were bone dry, like, no gas was in the cyl or something. I've replaced the distrib. cap, the spark plug wires, and the spark pulgs. I've also replaced the fuel filter, and I just put in som BOSCH Platinum +2 spark plugs in. Does anybody have a clue as to whats going on?