Ford Mustang
P0134
The P0134 code indicates a malfunction with the upstream oxygen sensor (O2 Sensor) on a Ford Mustang S550 (2015-2023), specifically indicating that the signal from the sensor is either too low or not changing as expected.
2 SolutionsP-CodePowertrain
P
Error Code Type
Powertrain
Components
1 affected
Exhaust System
Symptoms
7 common
- •Check engine light illuminated
- •Poor fuel economy
- •Rough idle or stalling
- +4 more
Most Affected Generations
1 generation
S550
2
Top Affected Components
1 component
Exhaust System
2
Severity Levels
1 level
medium
2
Quick Facts
2
Total Solutions
1
Affected Components
7
Common Symptoms
1
Generations
All Solutions
Showing 2 of 2 solutions for error code P0134 across all generations.