OBD-II code P0401 indicates that there is insufficient flow detected in the Exhaust Gas Recirculation (EGR) system. This typically means that the EGR valve is not functioning properly, which can lead to increased emissions and reduced engine efficiency. Possible causes include a clogged EGR valve, blocked passages, or a malfunctioning EGR sensor. Addressing this issue often involves inspecting and cleaning the EGR system components.
PO401 indicates an abnormal EGR flow.
exhaust gas recirculation flow insuffcent detected
i got the code 401 for 2005 mitsubishi galant?
Trouble code P0001 means: Fuel volume regulator control circuit open
no
Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 1, Sencor 2
exhaust gas recirculation flow insuficient
With an OBD2 scan tool.
2001 ford windstar has code PO401 erg insufficent flow.
Trouble code P0401 means:Exhaust gas recirculation flow insufficient detected
Trouble code P0401 means:Exhaust gas recirculation-insufficient flow detected
how did you get the E071 code ? my 99 2.2 4 cylinder only gives two diget and five diget codes on the obd11 scanner. how did you get the E071 code ? my 99 2.2 4 cylinder only gives two diget and five diget codes on the obd11 scanner.