O2 sensor differences & specifications
Discussion
My Mum has a 2002 Honda Civic 1.6.
The pre-cat O2 sensor is complaining about the Heater circuit malfinctioning. Sure enough, it's open circuit.
Not to worry...I have a couple of spare Lambda sensors.
First was a used one from a Ford Focus. This has a good heater, but the car threw a high voltage error. Sure enough, it was peaking at around ~1.2v on the scope.
Next I tried a brand new spare that I have for my MR2. Again, heater all good...but this also threw a high voltage error...again, it was peaking at ~1.2v
So I put the old one back in, and this does indeed have a lower voltage, peaking at <1v
I always thought these sensors were fairly bog standard...the only usual differences are whether they have a heater or not.
I know some are wide band - could that be the difference here?
The pre-cat O2 sensor is complaining about the Heater circuit malfinctioning. Sure enough, it's open circuit.
Not to worry...I have a couple of spare Lambda sensors.
First was a used one from a Ford Focus. This has a good heater, but the car threw a high voltage error. Sure enough, it was peaking at around ~1.2v on the scope.
Next I tried a brand new spare that I have for my MR2. Again, heater all good...but this also threw a high voltage error...again, it was peaking at ~1.2v
So I put the old one back in, and this does indeed have a lower voltage, peaking at <1v
I always thought these sensors were fairly bog standard...the only usual differences are whether they have a heater or not.
I know some are wide band - could that be the difference here?
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