My 199 V70 has about 70k miles. Recenty the check engine light came on; I had the code checked and it was P0130.
So I installed a new front oxygen sensor and had the light reset.
I drove the car about 20 miles after the light was reset. The car ran fine.
The next time I started the car, the light came back on. I brought it back and the code was the same, P0130. I had him reset it and it came back on within 5 miles of driving.
Does this mean the sensor is defective, or could something else be causing this code?
Thanks in advance
Roland
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