P0031 Toyota - changed sensor and check engine lights still don't go off

Question

07 fj cruiser- p0031 code came up on my obd meter, so I changed the bank 1 sensor 1 a/f sensor and my check engine lights still did not go off. I then changed the spark plugs filled up with premium gas and added injector cleaner and took the car for a nice long drive. I brought it home and tried clearing the code but the lights will still not go away. Can anyone help with this????

Answer 1

Hi there

This code is for the heater circuit in the sensor. If changing the sensor didn't resolve the issue it is possible there is a blown fuse or a wiring issue to the sensor from the fuse box or computer.

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

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