I have a 2001 Bullitt and it has a very rough vibration that I can feel in the gearshift and the clutch pedal. The car is vibrates/shakes very bad when pulling out in 1st gear, but clears up after that. I am getting code p0131, p0135, P0141 with code reader which I know is 02 sensors, but it was doing it before the codes where thrown and my tech guy says that o2 sensors will not cause this type of miss/vibration. I looked for vacuum leaks and have found none. It has a new clutch, pressure plate, throwout bearing. Any suggestions would be appreciated.