code P0155 - a Oxygen Sensor - options?
 

2000 Volvo S80 regular engine, 130k miles. Check engine light illuminates, and a scanner shows the code P0155 - a Oxygen Sensor. Clear the code and light - comes back within a few miles of operation. Car runs fine - no stumbling, stalling, etc.

What are my options?

If replacement of the sensor, I was told that there are 4 of them on the car - how do I determine which one and where it physically is located?

Does it screw in and have a plug for the wiring, or is there more to changing it?

And is there a perticular replacement brand I should use or stay away from?

RE: code P0155 - a Oxygen Sensor - options?
 

That code is for the drivers side front sensor.
I would replace with OEM brand sensor.(Bosch)
The sensor screws in and had a wiring harness off of it that gets unplugged.

RE: code P0155 - a Oxygen Sensor - options?
 

Thanks for the fast responce!

Please excuse my ignorance about this - but how does one gain access to the sensor? From the top, or below? Anything have to be removed to get to it?

Thanks!
Vince

RE: code P0155 - a Oxygen Sensor - options?
 

Below.
Sometimes the exhaust has to be dropped some other times you can reach it easy.