My wife ownes an 2009 aveo5 LT. She lost power and the engine light came on. took it to advance auto, hooked it up to computer and they said it was camshaft position sensor. When i look them up on Rockauto, it shows two of them. one says intake(it was cheaper), and the other says exhaust. i found them on the engine but i don't know which one is which. they are both on the right side of the engine, very easy to get to. just need to know if the one in the front is intake or not. you would think that the front is intake and the rear is exhaust but i want to know for sure. thanks in advance. Tim.