I kno obd2 f22b1's call for two o2 sensors but im running it one a obd1 ecu which only has slots for one is it possible to splice a second 02 sensor in to the one i already have running???

 

Huh?

OBDII has two O2s as the second one checks catalyst efficiency
If you are running OBDI then there is no provision/programming for catalyst efficiency and only uses the primary O2.

Each O2 will have their own pigtail, do nut run O2s in parallel or series, the signal will be incorrect.