kornfreak_401

iTrader: (77)

Ok guys a got a great tune at Conleys Performance Plus in Humble TX. Before i was throwing out P0172 and P0175 codes (basically running rich on both banks) along with other ones...

A week after my tune the SES pops up. So i go to Auto Zone and they pull up the same codes AGAIN. So WTF? do i have bad O2's or what? I know irs not the tune, i hope. I replaced the driver side O2 before the tune... I've heard that a bad cat would do that. well my driver side cat is hollowed out cuz of my LT's ( they hit anything over 4 in's). so ANY ideas or suggestions? I have a 2000 SS m6. cam, intake, full exh w/ LT...

Should I get O2 sim's since i have a bad cat??

Thanks in advanced...

Jerry

ZL1Killa

iTrader: (17)

when a tuner tunes your car the reset everything.. and it takes a while for things to re-learn themselves. sometimes it may take several days or a week for it to relearn based on driving habits and driving.

have you replaced BOTH 02's? and do those codes involve the front 02's or the rear?

kornfreak_401

iTrader: (77)

rear. i thought the point of the tune was to tell the car what it needs to learn so it wont do what it's doing now?

foff667

iTrader: (2)

those codes you mentioned usually turn out to be mechanical issues with the vehicle rather then in the tune.

kornfreak_401

iTrader: (77)

THANK YOU! All i am trying to find now, or narrow down, is what those could possibly be in my car...

foff667

iTrader: (2)

http://www.ls2.com/boggs/dtcs/DTC%20P0172.htm