CEL popped up yesteday!!!!

[nprincipe92]

I was driving to the gym yesterday (5/9/16) and the check engine light popped up. While driving I wasn't pushing the car hard just normal commuting as I do everyday. I swung by AutoZone to get it checked out and it threw the following codes: P1017, P0440, and U0100. After some research i discovered they mean this:

P1017: performance issues with eccentric shaft sensor

P0440: EVAP system issue

U0100: signals between the electronic control module or powertrain control module and another module have been lost. Could be issue with CAN bus wiring

Now it is worth noting that the car was sitting for about a month outside while I was away on vacation in mixed hot/cold weather in NJ. Is it possible that these codes could be getting thrown because of that and they will eventually settle? I have driven the car about 300 miles since initial sitting and the light probably came on around mile 280 so I haven't done much driving with the CEL on. While driving it and the light was on I did not notice any performance issues with the car at all. I know the code U0100 is the more serious of the three and that is the one I am most concerned with. Has anyone had a similar issue with this or do you think the three codes could be correlated with each other? Any help is greatly appreciated I am not trying to shell out some cash just to have a dealer diagnose it.