p401?
11-29-2011, 10:16 PM
#1
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p401?
i keep getting reacurring codes on my ses, always same one, p401-egr insufficient flow. my egr is supposed to be deleted with the tune i have. is their a separate DPFE sensor somewhere on the motor or is it made into the egr? didnt see one
11-30-2011, 07:46 PM
#3
TECH Fanatic
It's comparing pressure values in the MAP and throttle angle tables to known values for the EGR states. If the EGR table isn't matched to the MAP values then it will throw the code.
I couldn't tell you how to go about fixing it, I have the same issue with my EVAP system.
I couldn't tell you how to go about fixing it, I have the same issue with my EVAP system.
