Charging issues 05 outback

[Swiggy]

Belt tensioner blew apart on eday, so i changed the tensioner, alternator as it had 176k and ter belt. The battery light went out but cel refuses to stay off. I keep getting a low voltage. I replaced the new alternator as it was puching 12.6v. New alternator puchs 14.5 but i keep getting the same code and battery goes dead as no charge is going to it but the car will run fine with everything on pulling voltage from the alternator. I see theres a subaru fix for this as the ecm is telling the car the battery is charged?. The fix is cut the parking wiring and ground it to the earth ground which is to fool the ecm to think the vechile is calling for a load at all times. Will this fix turn off my cel so i can get a new inspection sticker. I also have a solid airbag light on at all times. Any ideas on that