NRN GT4

first of if anybody has a clue thanks in advance. this is the problem i have two cel lights i know what they mean but not how to fix them they are po170 fuel trim malfunction and po172 rich bank one. they car is a 00si with revhard turbo kit stock injectors new cap, rotor, wires and plugs. i have te synapse map bypass and i have had the rich code for some time but the fuel trim is a new one. the car is on fmu with sock injectors and the in tank pump that came with the kit so i dont know what size but the car has been running fine for about 9 months until yesterday. i have cleared the codes twice and they come back on within driving for twoo hours. could the cat be clogged or something. the idle is really messed up it idles extremely low. the dealer wont work on it because of the turbo kit and i would rather fix on my own. any hep would be great.

Forcedsol

bash out the cat and see what hapens...