i think i am having the same problem as you mines in the 1500 rpm up2 about 3000 rpm acts funny but when it gets past it it flysi checked all them things aswell but when i bought the my 3 door it was like that i have been told to change my ecu so away to do that after full rebuild(just to get this prob sorted gutted some one says a phase sensor it cant be that or the car would not start when did you last change your leads it my possibley be leads?