I have a 04 Sti that is having quite the hard time Idling. Ive checked and cleaned the MaF, no vacuum leaks, no error codes. Idles fine upon cold start then once it gets warmed up it idles from 500-1100 rmps constantly. My current mods are as followed: GFb stealth Fx Bov, 255lph FP, 750cc inj, Fp green turbo 23 psi atm,ngk Ird plugs, meth AEM kit, and other goodies, can list all but to extensive. Car was duned and dynoed by preracing here in Portland, Oregon. Any suggestions to a fix would be awesome, thanks.