I know these codes are in regard to the oxygen sensors. Most people have recommended replacing both the front and rear at the same time. Could someone confirm these are the correct parts? One says upstream, one says downstream.

https://www.fcpeuro.com/products/vol...-15097#reviews

https://www.fcpeuro.com/products/vol...0-v70-15062#qa

I have a 1996 850 Non-Turbo

Thanks,
Katie

 

 

I would do some checking before buying both O2 sensors. The P0130 is saying the ECU is not getting a signal from the front sensor. Could be the sensor, could be wiring so look around. The P0137 is saying there's too much oxygen in the exhaust. Seems to reason that if the front sensor's not reporting in, the mixture is off and the rear sensor goes out of range. My bet is fix the cause of the front sensor issues and the rear sensor code will go away as well.