hesitation problem.. [Archive] - Toyota MR2 Message Board

hesitation, plugs, today, fouled, hesitate, give, accelerate, platinum, copper, ideas, fine, rich, fixed, caught, running, sensor, happened, describe, good, started, problem, pump, fuel, drove, gave, throttle, accelerating, noticed, home, belton, waco, miles

just started on me today. i know that my fuel pump is good and so is my o2 sensor. anyway, let me describe what happened. drove to waco today from belton, about 35 miles. on the way home, i noticed some hesitation if i gave it more than 50% throttle. if im normally accelerating, its fine, but if i give it too much it will hesitate, then accelerate. could fouled plugs cause this? car has been running rich, which ive fixed, but maybe the fouled plugs caught up with me. i believe they are the