That's okay, so, is the 02 sensor before the Catalytic Converter (upstream)? I don't see any grey wires and honestly the OEM harness plug colors are different than the ones on the actual wiring diagram. Thats what happens with after-market information sources. They don't get things correct sometimes. But yes, so the DG (dark green) / OR (orange) should be 12 volts coming from the ASD Relay from pin 1 on the harness plug diagram.
So, I'm looking through the rest of these diagrams and they are different in other places. I'll have to go slow with this. But the two white wires on the sensor itself are the heater circuit wires, they are always the same color whether it be white and white, or grey and grey. Thats one certainty. The black/white wire on the harness side should go to the other white wire.
If you have a multimeter, we can check these to be 100% sure. But that should be the heater circuit part. Let me know when you're set there.
I see what you're saying, the sensor you have only has a black wire and a grey wire coming from it? So, it has been changed some time in the past.
If you only have two white wires and 1 grey and 1 black, then I think you have the right idea. I would assume the sensor signal Ground would be black and the Sensor Signal to the ECM would only leave the grey wire left.
That's an aftermarket sensor, that's why it's not matching up correctly.
Is this the 02 sensor you have?
They may have the black wire on this sensor as the Signal wire. You should check to see if there is a Ground connection on Pin 3 just to be sure. If you have a multimeter just set it on Ohms scale and touch the Pin 3 on the harness side and see if there is a Ground connection.
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Tuesday, June 21st, 2022 AT 2:49 PM