bmw 318i 2002 crank and no start

hi guys i parked my car in the morning at work and when i knock off the car couldnt start and its just cranking. i checked fuel pump it was ok and i checked spark it was ok. when i put diagnosis machine it showed crankshaft sensors and evaporative purge control valve. so i replaced the camshaft sensors and couldnt find evap valve aND THE CAR STILL CANT START. can the EVAP valve make the car not to start. and i realized again that the EML is on. Please guys advice before i take it to a mechanic