Causes and Fixes P0400 Code Exhaust Gas Recirculation Insufficient Flow
Code P0401 means that the computer detects insufficient exhaust gas recirculation (EGR) flow in the system. VW Passat Golf 2.0 TDI P0401/16785 Egr flow insufficient detected #aspgarage #carrepair #diyauto jesusislord Eventually the EGR ports in the throttle body adapter will build up carbon and restrict the air flow to the EGR valve. ...