my car seems to be bogging out at 6k.... i'm just running a t25 on a b16... only mods are fuel rail and regulator... and vafc... there is no setting on the vafc... it was reset.... my fuel pressure regulator guage reads 48psi... my air/fuel meter says i am running 2 lean... fmu is 12:1.... i threw in new plugs... just to make sure that wasnt it... but its still doing it... the only thing i can think of is the VAFC or the FMU.... will the vafc change the setting on my car if it was reset... there is also a werid idle problem with the car... it barley holds and idle... but vaccum pressure is at 17-18....

 

Try taking the vafc out and run just the fmu. You shouldnt lean out with that small of a turbo....

Maybe the plug gap is too big......

 

and make sure you have the fmu hooked up right

 

yea... its pretty easy to hook up... any1?