xtx 660 pcv problems
 

Hi, i have xtx 660 m.y. 2007, with akrapovic (twin) with db killler, Sprint Filter air filter, DNA Stage 2. Today i mounted these parts and a power commander 5, when i tried the bike i felt an on-off effect at about 50% throttle (5000/5500 rpm). When i came back home, the bike didn't want to start anymore.
I put off the pcv, i started but when i turned the throttle it switched off. Now it doesn't want to start.
Is this a problem with the map (maybe the mixture is too rich)? The CO was setted at +18.