my car has been running rich latley and i cant figure out why. my mods are greddy filter and downpipe, 3" test pipe, hks super drager exhaust, and 2jz 440cc injectors. i dont think its the 02 sensor because im not getting any DTC's and i just replaced the injectors for that reason so any help would be appreciated.

This message has been edited. Last edited by: 90mk3,

would i possably need an adjustable fuel pressure regulator with the bigger injectors? im not sure if the difference between the stock 380cc and the 2j 440cc is engouh to need one.