question about a heated o2 sensor
#1
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question about a heated o2 sensor
I just bought a 4 wire universal heated o2 sensor on ebay. because i want a heated o2 sensor.
As stated already it has four wires: 1 ground, 1 sensor wire, and 2 wires for the heating circuit.
I thought that i could just ground the ground wire to something, hook the sensor wire to the sensor wire to the ecu and splice the two heater wires in to a 12v source.
My concern is the it will not heat right it i do it this way. I'm not familar with why there are two white wires for the heating circuit. Are they both +, or are the- and +.
has anyone done this before or have any idea if it will work? If so let me know thanks.
As stated already it has four wires: 1 ground, 1 sensor wire, and 2 wires for the heating circuit.
I thought that i could just ground the ground wire to something, hook the sensor wire to the sensor wire to the ecu and splice the two heater wires in to a 12v source.
My concern is the it will not heat right it i do it this way. I'm not familar with why there are two white wires for the heating circuit. Are they both +, or are the- and +.
has anyone done this before or have any idea if it will work? If so let me know thanks.
#2
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http://www.v6z24.com/mods/howto/imag...eated/o202.jpg
this is a link showing what the wires are.
So if i slice wire A and C together and ground them to something, hook my signal wire up, and find a +12v and splice that to wire D i think that will work.
anybody else agree?
this is a link showing what the wires are.
So if i slice wire A and C together and ground them to something, hook my signal wire up, and find a +12v and splice that to wire D i think that will work.
anybody else agree?
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Anyone else agree or is sircygnus right
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#12
I had a heated narrowband 02 sensor for awhile. I ran fused 12V power off of the empty slot in the main fuse box. This went through a relay that was switched via the center wire (B/W?) on the 6-port green test connector (by leading coil). But I eventually removed the whole thing because it was just not necessary. And non-heated 02 sensor replacements are dirt cheap, while the heated versions cost significantly more.
#13
compared to 1 wire narrowbands, heated narrowbands are used mostly for emissions. The faster you can heat up that sensor, the sooner you can go into closed loop (front o2 sensor) or detect the efficiency of a cat (rear o2 sensor).
a narrowband is basically a battery. it generates voltage directly, as opposed to a wideband which produces current like a generator. the 4 wires on the narrowband are for signal, ground, and then two unpolarized wires for the heater. widebands are 5 wire. they are WAY more complicated than heated narrowbands and have a much more complicated heater control system.
I've got a bunch of Toyota technician training manuals on this issue I might post up.
a narrowband is basically a battery. it generates voltage directly, as opposed to a wideband which produces current like a generator. the 4 wires on the narrowband are for signal, ground, and then two unpolarized wires for the heater. widebands are 5 wire. they are WAY more complicated than heated narrowbands and have a much more complicated heater control system.
I've got a bunch of Toyota technician training manuals on this issue I might post up.
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