stonegod85 said:
excessive exhaust recirculation.....i don't get it...i was driving down the highway and hit a fricken crazy pot hole on a newly black topped road (hit before i saw it) and then my check engine light turns on...i did a diagnostics check and this pops up...i didn't smell any leaks in the exhaust nor did i hear any...what is this?
po402 excessive egr flow detected. easy it's the dpfe sensor. your car maybe covered under the recall for it.
OK no car info in your sig,post or profile.. that makes it easy too figure out if your covered under the recall or not
if you want tech help post info.
BTW i am 560 percent sure it's the dpfe,we have done so many of them i even know the code by heart, ( and that the less common excessive flow code po401 is the insufficent code)
so if your car is not covered under the recall go buy a DPFE ( differental pressure feedback (egr) sensor)
and don't let some jackass tell you to buy a egr, because it wont fix it.
buy the part at a ford dealer... not autozone, they will get confused by the DPFE and not know what too do. all they know is 02 sensor and tps and they are always wrong.
one last thing.. when replacing the dpfe ( if not covered do it your self) make sure you plug the fat hose into the fat nipple and the skinny hose on the skinny nipple..
don't laugh i have seen a lot of "techs" who must have flunked kindergarden, have come backs because of this. if you do reverse the hoses the CEL will come back on.
