My wifes 2005 Neon SXT started lagging and wouldn't go over 60 MPH, engine light came on and I put a code reader on it and it said-P0340 camshaft position sensor A(Bank 1 or single sensor). Just wondering what it could be, she said it lurched then it started happening. I don't know if this had anything to do with it but, she filled the gas tank the day before and forgot to put the cap back on. Any help would be good, Thank you.

 

replace the cam position sensor.then clear the code and see how it runs.