P0031 Toyota -

Question

Hei!
I have a problem with my Toyota Prius 2011.When i replace A/F oxygen sensor (not original) its check lamp p0031 but car is working normal but when i replace to new original toyota oxygen senor the check lamp i gone but when the engine its hot and i put of gas pedal then its shaking

Answer 1

Hi there,

If replacing the sensor hasn't solved the issue, it's likely a wiring problem. Here is some info for you.

P0031 TOYOTA - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 1

Read more: https://www.autocodes.com/p0031_toyota.html