I have a 51 plate fiat Bravo with a misfire, I have replace the plugs, leads and coils, still have the same problem, the garage say its missing on number 1 and 2 cylinder, and put on computer it say misfire. They say it could be cylinder head has gone, but this sounds a bit drastic to me, read somwhere it could crankshaft sensor or another sensor. Anybody help with this???