i have a 93 landcruiser that is cutting out or sputtering when driving. acts like a slug of water. been happening for 6 months. have run multiple engine treatments and heet water removers. is happening now just about every time driven. replaced fuel pump and filter,plug wires,distibutor cap,in case it was electrical miss. i'm out of ideas on causes and dring me crazy. any help would be appreciated. thanks