3 wire heated oxygen sensor
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Joined: Dec 1999
Posts: 770
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From: San Antonio, TX
Car: 86Z/92 RS Camaro
Engine: 357 vortec finished. need tuning
Transmission: Still works
Axle/Gears: need 3.73
3 wire heated oxygen sensor
I did the search and found what I am looking for but need help trying to get my O2 wired correctly. I saw the diagram on sethirgen.com: http://sethirdgen.org/images/HO2S.jpg
and also the diagram from Vader:http://216.121.161.76/files/4WireHO2SRelayCircuit.gif
I would prefer Vader’s method but unfortunately electrical diagram is not my “cup of tea”. What relay would I need? The wire on my Bosch 13077 has 2 white and 1 black. Any help would be appreciated
and also the diagram from Vader:http://216.121.161.76/files/4WireHO2SRelayCircuit.gif
I would prefer Vader’s method but unfortunately electrical diagram is not my “cup of tea”. What relay would I need? The wire on my Bosch 13077 has 2 white and 1 black. Any help would be appreciated
Last edited by 86z/92rs; Nov 28, 2004 at 10:39 AM.
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Joined: Mar 2004
Posts: 299
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From: Frederick, MD
Car: '86 Iroc, '87 Iroc Vert
Engine: 350 TPI, 305 TPI
Transmission: T5 in both
Axle/Gears: 3.73, 3.45 both LSD's
Try this diagram. Its from a 95 S10 4.3 TBI. For the pink wire, I would just tie into the camaro emissions components. All the little air Air Control Valves and misc. camaro emissions have a common pink wire. Use this for your "ign feed". This wire runs through the fues box in your camaro. Use your current O2 power wire for the Computer Control on the Three wire O2. I would then attatch a ground wire either into the harness common ground wiring or lenghten the a wire at the O2 and attach it in at the common engine ground(where all the other grounds are bolted to the cylinder head). If that doesn't make sense let me know.
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