What is the code P0401 on a VW Jetta?
What is the code P0401 on a VW Jetta? Diagnostic trouble code (DTC) P0401 stands for “Exhaust Gas Recirculation (EGR) Flow Insufficient Detected. The code is logged once the PCM detects that there’s insufficient exhaust gas recirculation (EGR) flow in the system. The P0401 code is triggered because of blockages in the EGR system or […]
What is the code P0401 on a VW Jetta? Read Post »