Honda Repair: Spudders at lower RPM, vacuum leaks, vacuum line

Question
Hi I have 1991 Accord, auto. if you hold your speed below 2300 rpm it has a slight spudder, it has new plugs, wires, cap, rotor, and coil. and have run lots of Lucus injector cleaner, can't hear vacuum leaks. If you boot on it , it takes off like no buddies business.Yhank You

Answer
 Well have you tried replacing the fuel filter if self? I would shoot for that first also check the fuel pressure make sure your geting adiquate pressure you could have a regulator problem as well. As far as vacuum leaks go you can not always hear them check the hoses check for dryroting if there dryed out you should go ahead and replace them vacuum line is cheap and avaialbe at your local parts store. One more thing remove the throttle posistion sensor and idle contorl valve from the the throttle body clean them out with carb cleaner and replace this could be a issue as well. Thats the best I can tell you at the time.