Hi folks!

I've got an issue with my EGR since a year and the resolution haven't found yet. I'm curies about your opinion what would that be!
I've got EGR related fault codes in the ECU, and therefore my mechanic ordered a new EGR valve (year ago) which was replaced along with one pressure sensor. MAF readings checked and thats ok. Wires seems ok.

The porblem remained: after the adaptation the car is ok for 1-2 weeks, mostly after long jorneys it starts stall (mostly when the engine is cold) and EGR fault codes come up... adapt again (he use some sort of bosch device for that) the car is ok again for some time but after a while the issue repeated... its very annoying and i dont want to buy a new ECU for several thousends.... if its not necessary

The car has a modified sw due to DPF removal, however the problem was existed before the removal either... so i dont thinks thats the problem...

Please could you share your thoughts?

Thanks