The original 4 wire Oxygen sensor for our cars is just too expensive in my opinion. I've been lookin around and the cheapest price I can find is $45 from ngk.com and that's for a universal 4-wire O2 sensor that I will have to splice into the connector from my old O2's. After shipping we're looking at >$100 to replace both of my bad oxygen sensors.
All oxygen sensors work the same way (with the exception of wide-band oxygen sensors). Only one wire is needed to provide the ECU with a signal. Our cars have 4 wire oxygen sensors. 1 wire provides the signal, 2 wires provide power for the heating element that allows the oxygen sensor to reach operating temperature faster, and the remaining wire is a ground just to make sure the sensor is grounded.
So eliminating the other three wires, it's possible to replace the 4 wire sensor with a cheap universal 1-wire sensor from autozone for $18 each. Just tap into the signal wire on your old oxygen sensor connector and remove the other three wires from the connector.
I know a lot of you probably won't like the idea, but I no longer get a check engine light, and I saved myself more than $60 .
All oxygen sensors work the same way (with the exception of wide-band oxygen sensors). Only one wire is needed to provide the ECU with a signal. Our cars have 4 wire oxygen sensors. 1 wire provides the signal, 2 wires provide power for the heating element that allows the oxygen sensor to reach operating temperature faster, and the remaining wire is a ground just to make sure the sensor is grounded.
So eliminating the other three wires, it's possible to replace the 4 wire sensor with a cheap universal 1-wire sensor from autozone for $18 each. Just tap into the signal wire on your old oxygen sensor connector and remove the other three wires from the connector.
I know a lot of you probably won't like the idea, but I no longer get a check engine light, and I saved myself more than $60 .
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