Lean bank can be a couple of things. The oil idk should have burned off look at the filter if it'* glistening you should probably clean and re oil. Also I'd take you TB off and hit it with some Mass air clearer also look at cleaning you TB it self. Did you make a box for your intake, fender wall it, or such. if not you are just pulling straight hot engine air into your car.
One more thing. I learned this form bill. Check you battery terminals. Apparently for muffed up ones ona guys car and it sent a lean code.
97SE-180*stat, Gutted Air Box, Green Air Filter, Rear Air Shocks
^Future^- HV3, Stage 2 Heads, L26 Upper, P&P LIM, LS6 VS, LS1 Retainers, N* TB, LQ4 Maf, CAI, 65-HD Trans, GT2 cam, SSEi sway ES links