100% is fully open not shut, fully shut it looks like yours shows 1%, mine shows 4% when fully shut.
Those 560mg/I when egr at 1% look about right compared to mine , as the egr opens the airflow drops to 380ish - 350ish that looks about right also but it doesn't stay low enough for the ecu and the egr keeps opening more and more till 100%.
As said above clean and ensure the egr is opening enough, not sure how stefz tested egr cooler (starting car with egr valve off, and feeling for exhaust flow at supply to egr pipe)
One thing doesn't look right are those desired airflows down in the 270's look too low, plus the value isn't dropping when it expects value to drop with egr opening?
Has this car been remapped at all?
What ecu code are you eg I'm edc16c39 , are you connecting to the right ecu in fes.
Last edited by sussexa; 25-03-12 at 10:26.