no Power From O2 - (2 brown wires??) - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

MrFairlady · 06-28-2009, 02:27 PM

Consult Shows NO o2 Readings.
(Sr20 bltp in a 93 hatch - w/ Brand New SR20 Harness).New Bosch 3 wire O2 sensor.

On the S13 Chassis side (2 main plugs near Battery) there seems to be a Brown wire on the small Brown plug un-used,..but the Brown o2 Sensor wire coming off the SR harness can supposedly be wired to any +12v Switched source.I wired (soldered) it to the Blk/Red stripe like the Diagram States you can.

COnsult Shows no reading from o2.Checked the o2 wiring itself and its correct.Why would there be no Power to it?

What is the Brown wire on the Chassis/engine harness then?

06-28-2009, 02:27 PM	#1
MrFairlady Nissanaholic! Join Date: Mar 2007 Location: Fascination Street,N.C Age: 45 Posts: 1,701 Trader Rating: (31) Rides Gallery: MrFairlady Feedback Score: 31 reviews	no Power From O2 - (2 brown wires??) Consult Shows NO o2 Readings. (Sr20 bltp in a 93 hatch - w/ Brand New SR20 Harness).New Bosch 3 wire O2 sensor. On the S13 Chassis side (2 main plugs near Battery) there seems to be a Brown wire on the small Brown plug un-used,..but the Brown o2 Sensor wire coming off the SR harness can supposedly be wired to any +12v Switched source.I wired (soldered) it to the Blk/Red stripe like the Diagram States you can. COnsult Shows no reading from o2.Checked the o2 wiring itself and its correct.Why would there be no Power to it? What is the Brown wire on the Chassis/engine harness then? __________________ z-tERty-2