im working on a 04 sonata that had a check engine light on. it was misfire cylinder 2 and 4 the coil, plugs and wires were replaced. but now there is no codes and still have the same condition. it has a new t belt and crank sensor. i have checked for vacuum leaks none found. when the car is hot it feels like a misfire. off idle like about 900 rpms no stumble. anyone have any ideas??? it also has a new oem crank sensor. compression is good. no intake leaks. but it stumbles like a miss when hot runs fine when cold. does anyone have any ideas???