2009 Subaru Impreza

[Nickpurple]

Hello, my car has been having a very odd problem I’m not sure how to tackle I’m getting misfire codes on all my cylinders and my car is very jerky at consistent speeds (cruising high way or any continues none changing speed). I have whack loads of codes popping up aswell, P0301, P2099, P0200, P0171, P0010, P0137, P0304 their is also another bit my code reader can’t read it apprently. I’ve done a sea foam oil flush and oil change running car cleaner in my fuel with mid grade replaced my O2 sensors Cleaned my MAF sensor and spark plugs and plug wires. I can’t seem to find the problem maybe some one else has had this happen to them or knows how to diagnose this problem I’m open with all ears!