The first one is Left Door Control Module lost communication with the pcm. Nothing to worry about.
The second one is a lean code due to your CAI. First time driving in the cold?
I would get the 171 and 174 codes (lean codes) with my halltech sidewinder intake. The pcm will just enrichen the A/F mixture to compensate. If it keeps doin it though, you may want to do a dynotune with LS1edit.
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