I been searching but i had no luck so maybe some can help me.My car is a 97 civic cx hatch and i got a gsr swap. the problem is that i dont know if i need 2 O2sensors or 1 and also everytime my rpm hits 5grand in each gear it wants to pop out of gear but when i put the jumper harness to make it an obd1 my rpm is fine but it makes my rpm jump up and down. im using a B16ecu. Ihave a jumper harness but i have it for a OBD2A Should i get the OBD2B since i have a SI 99 harness or maybe switch some wires to make it a OBD2b from an OBD2a so that i dont have to buy a new one.