It finally happened to me...P0401

[Conrad AlbertoJr]

Well I got the check engine light on the way to work. Got it read at auto zone and got this. I got it once last year and changed the DPFE sensor and it went away. (thanks to the guidance from all of you fine folks) So im wondering have any of you changed that DPFE sensor and had it go bad after a year? Should I really change the EGR valve this time? :blink:

 

[EddieS'04]

That most kikely fixed it if the light stays off. I dont know your millage. You could remove the egr and clean the carbon from passages. I would not replace it unless you get a code on it.