Audi DTC P1420 – Secondary Air Injection Valve Circ Electrical Malfunction
DTC P1420 meaning on Audi
The Diagnostic Trouble Code (DTC) P1420 for Audi indicates a Secondary Air Injection Valve Circ Electrical Malfunction. This means that there is an issue with the electrical circuit related to the secondary air injection valve in the Audi’s engine system.
Audi DTC P1420 symptoms
Symptoms of DTC P1420 on an Audi may include:
- Check Engine Light (MIL) illuminated on the dashboard
- Reduced engine performance
- Increased emissions
- Engine misfires
Audi DTC P1420 causes
Common causes of DTC P1420 on an Audi include:
- Faulty secondary air injection valve
- Wiring or connector issues in the circuit
- Blown fuse related to the secondary air injection system
- ECU (Engine Control Unit) malfunction
Audi DTC P1420 seriousness
The seriousness of DTC P1420 on an Audi should not be ignored as it can lead to increased emissions, reduced engine performance, and potential long-term damage to the engine if left unresolved.
How to diagnose DTC P1420 on Audi
To diagnose DTC P1420 on an Audi, you can:
- Use an OBD-II scanner to retrieve the fault codes and further diagnostic information
- Inspect the secondary air injection valve and related wiring for any visible damage
- Check the fuse related to the secondary air injection system for continuity
- Perform a thorough visual inspection of the components in the secondary air injection system
How to fix DTC P1420 on Audi
To fix DTC P1420 on an Audi, you may need to:
- Replace the faulty secondary air injection valve
- Repair or replace any damaged wiring or connectors in the circuit
- Replace the blown fuse if necessary
- Reset the ECU and clear the fault codes after the repairs
How to erase DTC P1420 on Audi
To erase DTC P1420 on an Audi, you can:
- Use an OBD-II scanner to clear the fault codes
- Ensure that the underlying issue causing the fault code has been resolved before clearing it
- Perform a test drive to confirm that the Check Engine Light does not reappear