Hey everybody, I need help. My car seems to be shaking a little and keeps coding for cylinder 4 misfire. Every once in a while, the car starts sputtering/shaking pretty badly. It seems to throw a code (Check engine light) after restarting it while it's still warm. Cold starts and driving at high speeds do not seem to bother it. I have been driving it anyway and it the CEL will go off for a few days,and then come back on for awhile. The car seems a bit off and a little shay all of the time, though. I still get great gas mileage and have not had any other problems. I have replaced all of the plugs and the coil pack for cylinder 4...with no changes. Any suggestions?