I would be hard-pressed to rule out a faulty crank position sensor.....on 3 different cars,I had had crank sensors that didn t throw CPS codes but rather simply misfire codes
Follow Scott's advice 1st though
this is why God/Allah/whateveryouwannacallyourgodbutitsallthesamedifference sends rain to Mexico and not the Middle East.....xplaining that he is in fact a dude or a lesbian
http://4.bp.blogspot.com/-hkjTUoUh96M/TxDR6FHdAPI/AAAAAAAAp7A/nYC6gmJNZqs/s1600/12011--weather-mexico-middle-east.jpg