Guys,

Has anyone had DTC Code P0401 to come up after running a diagnostic check? According to the manual I got with my micro turner, the code indicates a problem with "Exhaust Gas Recirculation Flow Insuff Detected." In simple terms, is this a problem with bad gas, 02 sensor, or what? It should not be the fluid filter since I changed it only 3 months ago.

Thanks in advance

 

do a search for egr related issuse there is alot of info in it here. most likely need to clean egr passages and change dpfe sensor.