GMC ACADIA P CODES (POWERTRAIN) P0001 - P0099

I Went In For Smog Check Today, And Failed With These Two Codes (p0014, P0017). Does This Sound Like A Problem With The Camshaft Sensor...

Check Engine Light Goes On For A Couple Days Then Off For Couple Days. No Engine Performance Change. If I Knew Where Camshaft And/or...