LTFT's running lean.

[rockinace6]

ok guys im from sss.com i have an 03 sss with a small cam, lts, no cats, wires etc.... oil pump went out about a month and a half ago and we replaced it. the same day i was driving back to school and shot a p0131 code and i was told it was a bad o2. went to take it out and it had ceased in the bung. well had another bung welded about 8" behind that because thats the only place... so then the next day i shot a p1133 code (improper switching of bank 1 o2) and then that shot a p0171 (system lean bank 1). well i changed o2s from side to side, checked for vacuum leaks, checked for exhaust leaks, cleaned the injectors and swapped them from side to side. nothing. so yesterday i went and had the bank 1 bung relocated as far up as possible. that helped a lot.


first code cause my LTFT's to be..... bank 1 ranged from 19-25%
bank 2 ranged from 0-3%

so after the o2 bung was relocated YESTERDAY i was reading an average of 8-12.5% on BOTH banks. blackbear is my tuner and i cant figure it out. he said maf could be off, so i rotated that and cleaned it. same thing.


any advice??