2008 subaru legacy problem
So I recently put in an cold air intake and my vehicle was
driving well at first but then I started to notice it was
loosing throttle response. I took it home and turned it off,
then turned it back on and tried to reverse and it starts
jerking and the rpms were bouncing. It does the same when
I put it in drive! So I eventually backed out of my drive way
but the car only let's me accelerate to 20 mph or lower. Im
not sure what to do. I've pulled a code p2109. The car
sounds bad when It idles. Idk can someone help?