I swapped a B16 sirII into my '92 civic hatch in one weekend, yet it has taken us three months and it is still throwing a code, 43, which is O2 sensor I believe. We have tried hooking this thing up every possible way, it has two black wires one white and one green. I'm thinking maybe in the process of hooking it up we fried it, so I don't know what to do? Any help would be much appreciated. Also I was getting a code for the MAP sensor saying it wasn't hooked up, I couldn't find the MAP sensor on my engine so I took the sensor out of my old D15b engine and hooked it to my wiring harness and it's just dangling in my engine compartment, but it stopped throwing a code. (Temporary solution) Any help with this would be great also. Thanks a lot. I desperately need that CEL off so I can get my VTEC finally!!!!