tons of O2 codes
P1153
P0133
P0135
PO140
P0151
PO155
P0160
is it possible i jus have bad O2 sensors or is there something else going on?
...the downstream O2s show no activity because i still have to get it tuned out (no cats)
Lots of suggestions. Could be your sensors, you could try some Bosch 13111's or some vette rear O2 sensors. There are some tuning settings that can also be made. Some of the other codes also show up after a header install. You should read this thread. 
