Engine lite goes on for a while then goes off
ECM code P015A/B. Dealership replaced air fuel ratio sensor. Problem still persists.
Repair guides and support for the fourth generation Forester, a compact crossover vehicle manufactured by Subaru.
You would at least let us know which Sbaru and waht engine this is. The P015 code is usually related to the O2 sensors. Have those checked as well as the MAF. You can also get this because of a bad cat or aexhaust leaks as well as well as cracked header (gasket) etc.