I bought a 2003 EP, the Check Engine Light is on. Its throwing code P0172 and says "system to rich bank 1". It has a greddy turbo and full exhaust system. I tried replacing the primary 02 sensor. That didnt get rid of the CEL. I tried buying a 02 simulator and wired it into the secondary o2 like the instructions said. That didnt work. I dont know what it could be. Maybe I need an o2 defouler? What do u guys think?

Thnx for your input