Sorry,I thought you need a 4 wire o2 sensor. I used a nissan 300zxtt o2 sensor in my rb, It's a 3 wire. the connector is the same. I had to get emissions done on my 300zx and one o2 was working very slow. I grab one of my o2 sensor out of my rb and put it in my 300zx, It worked like a charm. Alot of the sensors interchange with other nissans.