im helping a buddy with a b16a1 swap in his crx. we're almost done, heres the problems!;

1)his harness has spots for 2 o2 sensor plugs, he only has 1 on the exhaust mani. theres another sensor of some sort next to the o2 sensor, but it only has 1 wire coming out of it, no plug attached to this wire either. its just a sensor with a wire coming from it. What's this wire for and what do we do with the extra plug on the wiring harness?

2)does anyone know where we can get a wiring diagram? the vaccuum line diagram we found was a MAJOR help.

 

Have you tried looking at this site?
http://www.Hasport.com
It has some good info.

 

check my sig


the motor requires 2 o2 sensors, u will need to a) chip ur ecu b) get a extra o2 bung c) run 2 wires off one o2 sensor.