I recently picked up a 2000 Chevy blazer. It idles rough until I unplug and replug the maf sensor in. Then it runs great. It does have 2 check engine codes.

P0102 mass or volume air flow circuit low input

P0113 intake air temperature sensor 1 circuit high input

ive cleaned the maf and throttle body. Also sprayed brake cleaner around upper intake plenum for vacuum leak. But never changed idle.

I’ll take any suggestions. Thank you