Egr problem

[Dididadzz]

The orange triangle comes on an off
look at egr valve position command an position measured
This is all. While truck running down the highway
Cleaning would help?
think it’s sticking am I correct?

[Rawze]

Start by doing a thorough egr tune-up on the engine ... clean everything out and replace all the old dirty sensors, etc.

ref: https://rawze.com/forums/showthread.php?...pid=9#pid9

[Dididadzz]

I did that an change the sensor delta p an map
Now am watching the graph an egr valve is staying closed an open when sometimes an engine sounds rough trying to boost when idling it up an it’s close
but when it opens engine it’s sounds fine