it will run fine until it gets up to 180 degrees then starts running rough and dies. then i try to start it back up but it lopes real bad and dies again. It wont run good until it cools back down. I have replaced crank sensor, cam sensor, throttle positioning sensor, heat sensor, map sensor and oxygen sensors. i have replaced all plugs wires coil and distributor cap and every thing under the cap. Its getting good spark. I put a fuel pressure gauge on it and i am getting 50 psi so i think fuel is not a problem. I just need some help on what it could be.