2003 Dodge Stratus Cam Sensor Problem

What is your question?

I have a 2003 Dodge Stratus and for a whole year i had to have the cam sensor that is located on the top/side of the engine replaced 5 times from the dealership, however the last time they fixed it they kept my car for over a week and i picked it up on a friday and it worked great however on saturday the cars check engine lights cam on and car started to get sluggish again i know it is the cam sensor, what the crap can be causing it to keep failing?