Hello all, in the workshop I have a Fiat Stilo Abarth gearbox selespeed,the problem ? from cold the car starts, adjust for about 5 seconds, then begins to flood and go out. If the put in motion immediately starts to adjust, and again after 5 seconds and repeats the usual tram tram, after about 4 or 5 attempts so well? the machine tends to stay in motion by one in an irregular manner with detonation, and the catalyst becomes red hot, the gasoline is not burned.If I keep it accelerated until 3000 rpm or more? the car goes well, when ? hot the machine ? perfect. In the engine control unit there are no errors, I tried to replace the following parts: probes landa, bulb ntc, dibimetro, spark plugs, a coil. I also cleaned the throttle body, tested the pressure in the injectors rail ? of 3.5 bar, the injectors are clean,and not well, controlled the stage. I don't know pi? what him, do you have any idea? Thanks in advance to anyone who wants to help me. Good day