Even though you replaced the cam sensor you could have gotten a bad one right off the shelf, it happens a lot. I would get another one and if it does the same problem then just take it back off and wipe it off and take it back to the store and they will never know but I believe you just got a bad sensor.

 

Well I had another idea but I lost it.

 

Yeah i'm havin the same problem tonite. But i found out what the problem is..... here my buddy put my cam sensor back on but it's upside down lol...so check that look at the sensor page on the main neon 1st gen page and make sure thats the way it is....heheh....silly people!