Hey guys my car was having maf issues i was getting a maf code and i grabbed a new maf from my friend. Car ran great then felt like it went back into limp mode except no more engine codes. Did a hard reset no help. Only when i disconnect the battery will it fix itself for a few minutes. Im thinking maybe my boost solenoid is done? Anybody have something like this happen? My car is a 1998 sti type r ej20k.

Thanks guys!