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Questions and discussions about oxygen (O2) sensors. Oxygen sensors are used to measure the exhaust gas concentration of oxygen for internal combustion engines in automobiles and other vehicles.

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O2 Sensor Bad Voltage Reading? 2013 Toyota Corolla

Ok I think I figured it out. I was just thinking that the downstream o2 sensor, which is the one that I was looking at, was used to measure air fuel ratios when really it is only used to measure the e …
Mapl20's user avatar
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O2 Sensor Bad Voltage Reading? 2013 Toyota Corolla

I'm Looking at the o2 sensor data for my 2013 Corolla and don't know if B1S2 is bad or not. I've heard that o2 sensors in general should oscillate between 0 and 1 V but I've also heard that for newer …
Mapl20's user avatar
  • 11