I'm coming up on 30,000 miles for my 08 WRX (no mods). I'm going to be replacing the air filter myself and have my mechanic do the other stuff. I read it's a good idea to clean the MAF sensor while I'm changing the air filter. I've read conflicting advise on resetting the ECU after I do this. Is it necessary to reset the ECU, or will doing this too often hurt anything? What sort of changes really require resetting the ECU if there are no mods?
I was planning to unplug the negative terminal, cleaning the MAF sensor, while it's drying replace the air filter and connect everything back up? Anything else I should/shouldn't do?