ok. first check ur spark. and check the fuel flow. if you dont know how to check your spark ask some body who know it to do it for you. there are may way to check the spark.
if you got spark and fuel flow is ok. i may ask you to check your CAT. block cat caused not to start the car.
just one more thing, check your CAS bolts are loose. some times they may loosen. let me know how you go.
where you locate...?