I have replaced my alternator camshaft position sensor vehicle starts up and shuts right down what's my problem

Who "told" you to replace the crankshaft position sensor? What troubleshooting has been performed before either part was replaced? Warning lights don't tell you to do anything in specific; they advise that a problem has occurred related to a certain system and that troubleshooting must be performed. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops