What does code P1424 mean on Volkswagen vehicles?
The ECU detects an air leak in the secondary air injection system on bank 1.
OBD-II Code Volkswagen
P1424 — Volkswagen — Secondary Air Injection System Bank 1 Leak Detected
The ECU detects an air leak in the secondary air injection system on bank 1.
Common symptoms
- Unusual noise
- increased emissions
Possible causes
- Cracked or disconnected SAI hoses
- vacuum leaks
Initial recommendation
Inspect secondary air injection hoses and repair leaks.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Volkswagen code P1424 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more brands