Thanks for the help guys.
I took out the sparkplugs yesterday(6 months old platinum+4) and they were pretty black. I put some new ones and now the engine turns on the first time I crank it.
I thought the problem was solved but when I revved the engine it did not go above 3,500 rpms. Below 3,000 rpm if revves very strong but after that it feels like out of spark or gas. I can't say how the car drives because I'm upset with the car.
Anyone had this problem before?
Thanks,
Giovanni.