Subaru Outback
P0131
A P0131 code indicates a problem with the oxygen sensor circuit; specifically, it signifies that the bank 1 sensor 1's signal is too low, which may suggest a malfunctioning sensor or issues in the circuit.
7 SolutionsP-CodePowertrain
P
Error Code Type
Powertrain
Components
1 affected
Exhaust System
Symptoms
10 common
- •Check engine light illuminated
- •Decreased fuel economy
- •Rough idle or engine hesitation
- +7 more
Most Affected Generations
2 generations
BM/BR
5
BS
2
Top Affected Components
1 component
Exhaust System
7
Severity Levels
1 level
medium
7
Quick Facts
7
Total Solutions
1
Affected Components
10
Common Symptoms
2
Generations
All Solutions
Showing 7 of 7 solutions for error code P0131 across all generations.