Verso - Engine Malfunction following DFP Regeneration

[Riri8182]

I had my 2017 Verso with the dealer 2 weeks ago as I had an orange Engine Malfunction light.

2 Codes were reported:

P00BD - Mass or Volume Air Flow

P1443 - Patriculate Filter Lamp....

Recommendation was "replacing map sensor and perform dpf regeneration" which was done - filter replaced.

When I got the car back the Engine Malfunction light came on again a few times but it was intermittent, then all good for 8 day, now light consistent for the past 2.

I will take it back to the dealer but does anybody have any info on what might be going on here?

Any info appreciated.

[flash22]

Bad EGR valve, It's either faulty or sooted up, bet it's a pain to start when cold and kicks out black smoke