12-21-2021, 12:22 AM
this is a 1 wire O2 that will not have a heater to Cell shorted failed, as can happen on newer model cars 91+ inside the O2.
that means it loves to fail , dead, 0v, and that sets fueling full rich, (by design (smog less) O2 is designed when bad to make NOX lows and fuel rich (best of 2 evils) and is good to know troubleshooting, if unplugged the O2, the voltage at the ECU there goes to 0.45vdc, this is mid point and fuel mix goes to that. far better than stuck at 0v or 1v.
that means it loves to fail , dead, 0v, and that sets fueling full rich, (by design (smog less) O2 is designed when bad to make NOX lows and fuel rich (best of 2 evils) and is good to know troubleshooting, if unplugged the O2, the voltage at the ECU there goes to 0.45vdc, this is mid point and fuel mix goes to that. far better than stuck at 0v or 1v.
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