P2020 check engine light

[Exhilarants]

2005 mustang GT with 174k miles started throwing up a p2020 code. I haven’t noticed a change with it on at all but this is my first car so I probably wouldn’t be able to tell the difference, so what’s the best route I should take to diagnose the issue?

 

[Dino Dino Bambino]

Here ya go:

https://www.google.com/amp/s/www.autocodes.com/amp/codes/p2020_ford.html

The code is for the IMRC runner control on bank 2 (driver's side). The most likely causes are either IMRC valves that are sticking because they're covered in encrusted oil deposits, or the driver's side IMRC actuator is faulty.
IMO, the best solution is to delete the IMRCs altogether and get a retune for it. You'll also gain ~6hp.

Charge Motion Delete Plates