code 0175 bank 2 rich. Any ideas?

[IXRperformance]

Hey I have a 00 blown gt and I am throwing a check engine light code that says bank 2 rich. Car runs great but has a rough idle. Any ideas? Injector or coil pack?

 

[DBMSTNG]

i would guess you have a leaky injector.

 

[Ricardo]

A code P0175 may mean that one or more of the following has happened:

The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters (K&N, etc.) can cause the MAF to become dirty if the filter is over-oiled
There could be a vacuum leak.
There could be a fuel pressure or delivery problem

This is directly taken from this site:
http://www.obd-codes.com/trouble_codes/generic/p0175-system-too-lean-bank-1-oxygen-sensor.php

 

[d90212]

i would presume this code to come on while boosting. are you running a FMU or how are you adding additional fuel while under boost.

a leaky injector could as well be the cause. usually when these go bad, you would feel the misfire as well.

 

[sgarlic]

Clean the MAF first, then pull the front o2 sensor from the drivers side and clean it with a wire brush.

 

[IXRperformance]

I had the car tuned yesterday and the tuner said that he cant change the fuel from bank to bank. There is no air leaks anywhere because I have a vac/boost guage. Can a fuel injector get leaky? How can I check injectors or coil packs?
Thanks