I had the same thing, and after I replaced the plugs wires and coil pack, I replaced the fuel regulator. THEN. I noticed that the large O-ring that seats the cold air intake to the throttle body had dropped off the canister and was sitting on the back of the engine. Air was entering the throttle body causing extremely lean conditions, misfiring, hesitation during acceleration. I beat my self up trying to find the problem, turns out it was a $.30 o-ring! Once I seat the canister to the throttle body on the o-ring, all the trouble stopped!
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Tuesday, November 18th, 2014 AT 12:46 PM