Recently put the Fiat under some stress due to trying to get it out of a pile snow from the big snow storm in March in the Northeast US. After finally getting it out of the pile, parked it and the next day the check engine light came on. Got an ODB reader and got the following fault codes: P1300, P0573, P030 and the following pend codes: P0573 and P0300.

Any ideas on what is going on? The Fiat seems to be running pretty well, not a fan of my dealership.

Welcome maybe an expert will be along soon but this is what I've found,
Whilst I'm not sure I tried just googling the codes and using this
http://p0300.enginetroublecode.com/
you can input the other codes on the left, there seems to be some indication of brake and accelerator pedal "issue" maybe like pressing both together? one of the other codes may be related to camshaft timing, note this is not a Fiat diagnostic tool so don't take it as read these are the right answers, a very simple thing is to disconnect the battery and then see what comes up, or make a note of all codes, clear them and see if they crop up after say a week?