Yesterday morning was cold, my car was covered in frost kind of cold. I started up my car, kept it in neutral went down my driveway (manual trans, short steep hill of a driveway). Then, my car stalls going downhill. No weird noises it just sort of died out. Started back up and had a CEL. ran great all the way to work and back home where I checked the code. P0102 - mass or volume air flow circuit low input. Erased it. Drove it again today with no issues. anyhing I should be worried about? I’m going on a short weekend trip is the only reason I am even slightly concerned about it but I will just end up bringing a bag of tools with me just in case shit hits the fan. Car is an 03 WRX.