DTC 17520

SAE VAG Description
P1112 17520 O2 Control (Bank 1) System too rich

Fuel injectors
- Fuel injectors, checking. Fuel Injectors, Checking

Fuel pressure regulator and residual pressure
- Fuel pressure regulator and residual pressure, checking. Fuel Pressure Regulator and Residual Pressure, Checking

Evaporative Emission (EVAP) Canister Purge Regulator Valve
- Evaporative Emission (EVAP) canister purge regulator valve, checking. Evaporative Emission (EVAP) Canister System, Checking For Proper Seal

Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC)
- Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC), checking. Oxygen Sensor (O2S) and Oxygen Sensor Control Before Three Way Catalytic Converter (TWC), Checking

Oxygen Sensor (O2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC)
- Oxygen Sensor (O2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC), checking. Oxygen Sensor and Oxygen Sensor Control Behind Three Way Catalytic Converter (TWC), Checking