P0031 and P1141 codes.

[gmader2001]

Hello everyone, im hopeing for a little help or advice, any would be great. I am having these 2 codes displaying. P0031 is Oxygen senor heater control circuit low. Bank 1 sensor 1. P1141 is closed loop control bank 1. it had those 2 codes then it says those 2 codes again but says they are pending, so it says 4 codes altogether. Its a 2007 Versa S with 150000kms. would this be a hard sensor to change or is it something i could do my self. I would say I have decent knowlodge about fixing cars. Also would just this cause it to fail a emission test, I mean only this sensor. Any info on this subject would be great, thank you!!

[SVTfocusO3]

Looks to be a bad O2 sensor, but...


Check for power at Pin 4 of the connector going to ECM.

And the sensor side, you can check resistance of pin 3 and 4, should be 1.8 to 2.4 Ohms @ 77°F.

If readings out, replace.


Sensor pins.

TOP
1 2
3 4

[stanley_1974]

How exactly do you replace it? I read that part of the exhaust manifold have to be removed so A/F 1 can be replaced .Is there other way ? I looked under the car but it seems impossible that way.