u/Diligent_Trade_3677

So I am having issues with my 2006 Subaru legacy gt 2.5L spec B. Turbocharged

The issue I am having is while I am driving it is very sluggish when I take off, and as it reaches 4,000 RPM the engine sputters it does this in any gear at 4,000 RPM, I pretty sure right when the turbo starts to kick in. I e replaced spark plugs did a leak test replaced the turbo and honestly idk what to do and can’t afford a shop. If I try gassing it past the sputter the check engine light flashes and goes solid with the cruise flashing. I read the codes and it’s shows that cylinder 1 and 2 misfire, it does this every time. There was one time that all 4 cylinders misfired, anyone have any clue what’s going on?