Ok i just bought a 97 civic for 500 bones sight unseen with the intent to fix up and sell. After the purchase I found out that the car has a B18B motor in it along with a bunch of other goodies. But anyway my questions is the motor harness was choped up by whom ever put the motor in it. I have gone through and soldered up all the wires that were simply twisted and electrical taped together, so much fun. But my question is there is a sensor that has no plug on it. It sits on the intake below the plenum all the way on the right hand side. I want to know what it is and how should i go about hooking it up. My other question is being the car is a 97 and as far as I can tell B18B's are mostly OBD I motors how can I tell if it still has the OBD II motor in it. Thanks to anyone who can help me with this because this harness is all sorts of Flucked up and I don't know how they got this thing to run.