P1424 OBD Code Definition:
P1424 EGI Glow Plug Primary Failure
P1424 OBD Code Description:

Possible Symptoms

• Malfunction Indicator Light (MIL) active

Possible Causes

• Piping between Secondary Air Injection Pump and Secondary Air Injection Valve leaking
• Faulty Kombi Valve

Possible Solutions

• Check Piping between Secondary Air Injection Pump and Secondary Air Injection Valve
• Replace faulty Kombi Valve