2 wire O2 sensor
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From: Chesapeake, VA
Car: 1970 K25, 1986 K5
Engine: Both 350s
Transmission: SM465
Axle/Gears: Dana 44/60 10-bolts
2 wire O2 sensor
I had found the thread awhile ago that talked about changing from a 1-wire O2 sensor to a 2-wire O2 sensor. Now I can not find it for the life of me. Anyways, which 2-wire O2 sensor is used? I know the "heater" wire needs to hook up to a 12V source when in run. Thanks,
Jim
Jim
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: 2 wire O2 sensor
Need a 3-wire O2 sensor, such as the AC Delco AFS-74
The two wires of the same color are heater + and heater ground (no polarity). The third wire out is the signal, with the signal ground being through the sensor body.
RBob.
The two wires of the same color are heater + and heater ground (no polarity). The third wire out is the signal, with the signal ground being through the sensor body.
RBob.
Re: 2 wire O2 sensor
This old thread of mine has P/Ns and pictures of how I did it:
https://www.thirdgen.org/forums/tech...heated-o2.html
https://www.thirdgen.org/forums/tech...heated-o2.html
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