Well I took my car to mitsubishi to get an engine flush and my fuel system cleaned. They also ran a diagnostic on my car and said that nothing was wrong. My iridium spark plugs are fairly new and I bought some new wires like a couple weeks ago. When I say that it hesitates it almost spudders but not bad. It will do this if I get passed 3 grand and have the peddle more than 30%. I am kinda lost.