Ok I have a quick question i have checked everything above and all comes out fine the Egr cooler looked plugged and it has been replaced so has the veturi tube. my question is i have a truck throwing the 4094 code fmi 18 when you are doing a regen on it, the temps do not come up constantly but it will disable regen the dpf intake temp will come to 1050 and outlet will sit at 700 then outlet will come up to 1050 and inlet will drop to 700 both time regen stops and starts. I do not have any issues from filter already dropped out and checked cleaned everything tests out perfect still have 4094 and will have trouble starting when truck is sitting for about and hour or so
