I should have mentioned that i replaced the fuel filter and fuel pump last year hoping to cure my problem. I should say I fixed another intermittent problem and i was hoping the 2 problems were somehow connected. Never know until you hit the road. Been running "sea foam" the last 2 tanks hoping to clean injectors. I can't hear any vacuum leaks, connections all look good. was thinking egr valve or o2 sensor. I was hoping to avoid playing "replacement technician".Limited resources,{did I mention the kid in college}350 miles from home [