still have PO401 code

[gile_82]

i have changed the DPFE, and the egr valve and cleaned the tube and it is still coming up with that code
im starting to get up set with it

 

[cjones101812]

do you get a P1408 in the KOER test?? if not, and the EGR valve is good, check passage ways are clear to both the intake and exhaust. if they are clear then the code may be intermittent.

if you apply 5in vac to the EGR valve does the engine stumble or die??

 

[BrooklynBay]

Welcome to this forum! Did you check the vacuum line for deterioration? Did you clear the code after you replaced the DPFE sensor?

 

[gile_82]

i clear out all the codes i have actron 2 scan tool
but ill check the vacuum lines
thanks guys