2009 Speed3 Codes P2177, P2187, P2195

[Brian R]

Hey everyone I am getting three codes on my AP but the car is running fine no missfires or running rough I've cleared the codes and they come back again. Any ideas where I should start? I have small mods like Cobb intake, HKS BOV, HPFP internals and COBB off shelf tune. Thank you.

 

[Awafrican]

Have you checked out the shop manual? It has all the diagnostic procedures in it for the error codes
https://mazdaspeeds.org/index.php?forums/mazdapeed-owners-manuals.193/

Clean that MAF sensor and ensure it's plugged in and facing the right way, check for leaks from intake to engine.
What is your fuel pressure reading? Worth having a look into the PRV here's a good video.

Also could be as simple as a bad primary O2 sensor if you do replace it only get NTK (OEM)