Originally Posted by rdicarlo
I will see if they have these sensors at my local auto parts store and give it a shot.
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Kris
I will see if they have these sensors at my local auto parts store and give it a shot.
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Kris
You have the sensor ground in the wrong spot. Connect it to the tan wire on D6. I'm not positive if you still have to ground D6 (oxygen sensor ground) but it doesn't hurt to leave it grounded.
That sensor is fine for your application. The output should read <0.45V if the engine is running lean.
Every 4-wire sensor has 2 wires that are the same color. They are the heater wires. Then, between the other 2 wires the darker one is the positive of the sensor and the lighter one is the negative of the sensor. So, your wiring colors sound fine other than the sensor negative going to the wrong spot.
I did this with no change to the voltage being read in TunerPro, still at 1054.6 volts. The engine stumbles once the ECM starts to control the fuel by the o2 sensor reading. Another interesting point, with the sensor wire completely disconnected, the voltage reading is ~400 volts.
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Kris
It sounds like you got a bad sensor then.
Thats what I thought. This is my third sensor with the same results. My multimeter shows readings which appear to be in spec. I know that its digital and may not be able to respond as fast as the o2 sensor swings back and forth.
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Kris
If it's the 3rd sensor with the same result it's not the sensor, or at least not a bad sensor out of the box. Check your wiring again and make sure.
The man who says something is impossible, is usually interrupted by the man doing it.
Yes, if that's the 3rd sensor then you likely have a wiring problem or a ECM problem but wiring is by far the likely suspect since you posted the ECM did work with the 1-wire sensor.
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