Was my cam sensor bad all along?

yes it will cause this problem. its very common. they must not been very good mechanics. its a very very common thing. misfire would be cause that sensor says the engine is turning and works with computer to tell it to fire soo if its not functioning all the time it will fire part time and miss at times so causeing the misfire and would die at times cause it gets so bad and could possibly flood itself. its very common. atleast u got it though. should be good to go as long as it didnt flood plugs too badly too many times,