Hello Honda People! Just a quick question. My 03 Civic LX sputters when I let go of gas. I have a 4-1 racing headers, 2.25 straight piping, and a no restrict exhaust. I changed the fuel, injectors, spark plugs, did the timing and replaced timing belt and the whole kit( water pump, tensioner, all the good stuff) it's not loosing power and all but it just sputters. I also changed the cam position sensor. Any clues? TIA