I have a 03 Duece stalling problem. It will not act up cruising around town when you are working the throttle a lot. You can travel about 10 miles or so at a constant throttle the let off the throttle and pull in the clutch and it will idle down then stall. You can let off the clutch or hit the start button and it will start right back up with no problem. I have checked fuel pressure about 57psi, changed the spark plugs, wires, throttle position sensor, idle air controller. It has set no codes. I NEED HELP!