P0139

SAE VAG Description
P0139 16523 O2 Sensor Circuit Slow Response Bank 1 Sensor 2

G130 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC)

- Oxygen Sensor (O2S) and Oxygen Sensor (O2S) control behind TWC checking. Oxygen Sensor and O2S Control Behind Catalyst, Checking