Oxygen Sensor On Vehicle
The oxygen sensor in the Honda Accord that i used, was located on the headers on the exhaust manifold. It was a Zirconia switching sensor type with one wire.
2500 RPM
I back-probed the O2 sensor wire with a pin and connected it with an oscilloscope. It produced a AC pattern. The range is .9 volts to 0 volts. If the signal is not cycling normally, the signal will stay roughly this is because the system is still in open loop or has a leak o some sort.
Idle RPM
The voltage range 0.008 volts to 0.9 volts. After calculations, the average voltage i worked out was 12 volts. The signal will show either a constant rich or lean situation or less cross counts.
O2 Rich
The sensor voltage when as high as 1 volt. If its not normal we may see that we don't get the high part for as low or it may cycle, this will give as faulty signals.
Idle RPM
The voltage range 0.008 volts to 0.9 volts. After calculations, the average voltage i worked out was 12 volts. The signal will show either a constant rich or lean situation or less cross counts.
O2 Rich
The sensor voltage when as high as 1 volt. If its not normal we may see that we don't get the high part for as low or it may cycle, this will give as faulty signals.
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