Have an issue with my BA , its loosing power when accelerating, got mechanic to put diagnostic check and came up with these codes PO826, P1131, B1348 and B2849.
He checked oil level in auto transmission it was good and clean, but had small amount of water on top. I replaced the o2 sensor or (hego, as fomoco advised)and plugs but not coils as they looked newish. Any ideas what to do next , I dont believe its transmission issue as mechanic thinks it is, I wasted money on my last BA for transmission issues!! All it was new coils and plugs ( And new mechanic) still going strong for the new owner.