07 YUKON CHECK ENGINE LIGHT!

[BLTZ]

My 07 yukon Denali check engine light
auto zone said that the history showed P0011 twice and P0335 once
i have already replaced the camshaft positioning sensor and my light after one week is still on.

 

[63Blackseries]

Low oil levels
Dirty or contaminated oil
Low oil pressure
Oil blockage
Incorrect camshaft timing
Bad Camshaft Bearings
Faulty Oil Pump

 

[BLTZ]

I have also heard the engine knocking do you believe it's due to the same problem.
Also I just moved from NewMexico to Alaska and I'm wondering if the cold weather is also causing these symptoms.
Thank you 63Blackseries for coming to my aid!!!!