insufficient exhaust gas flow!

[IH1466]

i've got a 99' f-250 with the 5.4 triton. recently the check engine light came on so i went to autozone had them pull the code and it came up with insufficient exhaust gas flow. the guy said it is either the egr valve (most likely) or its the egr sensor. replaced egr valve the light went off for 2 weeks and then came back on so next i pulled off the tube going from manifold to egr valve it seemed clean but i let it set in parts cleaning tank. figured i had it off might as well clean it. got the code reset and light came back on now what should i do get valve checked out maybe faulty valve change sensor.but i did realize while changing valves that whatever that thing is that the egr valve mounts to that is part of the intake had a build up in it. should i try pulling that off and cleaning it or what should be the next step takin??? any and all suggestions would be great!!thanks again!

[robsd]

Here is my thread with a link. Interested it you change out the sensor and that fixes it. Read down to the other link I post talking about the sensor. Keep up updated as my SES light is still on.

Rob

link the thread

[IH1466]

well i put the dvom on the sensor tonight came up with .11 volts [img]/ubbthreads/images/graemlins/shrug.gif[/img] what to do now??? totally disgusted with this.. should maybe since there is a warranty on the egr valve take it back and try that again.i mean i did get 2 weeks out of it when i changed it before the light came on again. or is there something else i could do?? any info. would be greatly appreciated!!

mike

[YT90SC]

If you tested the sensor right it is junk. the koeo voltage should be 1.0v. Ricerzone loves to do what they did to you.... sell you parts you don't need... EGR valves on gas engines are highly reliable and rareely fail... sensors are not.