might be the EGR VALVE insufficient flow
Trouble code P0401 means:Exhaust gas recirculation flow insufficient detected
P0401 Exhaust Gas Recirculation Flow Insufficient Detected
Trouble code P0401 means:Exhaust gas recirculation flow insufficient detected
Trouble code P0401 means: Insufficient EGR Flow Detected Replace the EGR valve
P0401 = Insufficient EGR Flow
Trouble code P0401 means:Exhaust gas recirculation flow insufficient detected
Trouble code P0401 means: Exhaust Gas Recirculation Malfunction
Trouble code P0401 means: Exhaust Gas Recirculation Malfunction
P0401- Exhaust Gas Recirculation insufficient flow. Probably need to clean or replace your EGR valve located on the back of your intake.
Trouble code P0401 means:Exhaust gas recirculation flow insufficient detected
Trouble code P0401 means: Exhaust Gas Recirculation Malfunction
Trouble code P0401 means:Exhaust gas recirculation flow insufficient detected