p0172

[kornkid21792]

hey guys!!while cruising last night i got p0172
i didnt notice any performance loss at all car felt good.
i did several pulls still felt quick as ever.didnt notice any kind of smoke.
maf was cleaned about 2 weeks ago
no leaks in the intake tract or anywhere else.
only leak i have is on my ac hose but i dont think thatd cause that.

possiblly a bad 02 sensor?what do you think heres a datalog so you can see the a/f values

https://docs.google.com/spreadsheet/...iVU83a1E#gid=0

[SD_GR]

Bank 1 rich PO172 is basically the same diagnosis procedure as the more popular PO171, but from your post it seems you already know this. Check intake and BPV hoses, tubing, FPR reference connection, all else on PO171 web list (not factory list, they do sensor first). If all else fails, then wiring, then sensor.

[kornkid21792]

thanks buddychecked all that good stuff even cleaned the iacv to no avail.does my datalog make it appear as though im running rich?