2011 Toyota Camry LE 2.5L L4 (4 Cylinder)
So I finally got a scanner. I’ve been doing some live readings.
My car has an exhause manifold cat. And 2 sensors. Bank 1 Sensor 1 is an Air Fuel Ratio Sensor, usually hovers around 3.1 to 3.2 volts with current hovering between -0.082mA to -0.055mA. This sensor is new.
Bank 1 Sensor 2 is an Oxygen Sensor. The voltage always starts out at 0 Volts until I start driving it around then it will hit something like 0.045V and slowly increase.
Once im on the highway, while accelerating, this Oxygen sensor will hover around 0.800V.
Now when I take my foot off the gas pedal, the voltage of that Oxygen Sensor drops to 0 Volts. The fuel system also switches to open loop at the same time when that happens.
The fuel system always switches to open loop when I take my foot off the gas pedal. The Oxygen Sensor drops to 0 volts but not every single time. I have a feeling the Oxygen Sensor is staring to fail but I have no codes to prove it.
What do you think is going on with my Bank 1 Sensor 2?
-Thank you all