2000 outback power loss going up long grades and bucking . No back firing.
I've changed ,tb and all idlers,water pump ,thermostat ,fuel pressure reg, plugs and wires, fuel filter, fuel pump, map sensor.
Now I'm going to do ,cat and both sensors, clean and check E.G.R.Valve.,anything else I need to do .149000 miles just bought this car .everyone has pawn it off to someone else but I'm here to stay and I will get this thing fixed lol I'll replace everything a part at a time until it is fixed lol