You lucked out. EGR valve circ insufficient-meaning bad valve or no vac to valve, etc. A cheap repair and not a critical item. It's for emissions.
might be the EGR VALVE insufficient flow
Trouble code P0401 means: Exhaust Gas Recirculation Malfunction
Trouble code P0401 means: Exhaust Gas Recirculation Malfunction
Trouble code P0401 means: Exhaust Gas Recirculation Malfunction
Trouble code P0401 means:Exhaust gas recirculation flow insufficient detected
Trouble code P0401 means:Exhaust gas recirculation flow insufficient detected
the p0401 code is for low egr pressure you a dealership will twell you you need to replace the egr valve also know as the dpfe sensor all you really need to do is clean out the line a pipe cleaner and a can of brake-parts cleaner will do the trick its simple and only takes about a hour of time
P0401 means no flow at the dpfe sensor. Usually a bad sensor. or bad hoses from egr ports to dpfe.
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Trouble code P0401 means: Exhaust Gas Recirculation Malfunction Replace the EGR Valve
Go to NAPA or AutoZone, they will tell you.
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