Hi guys I sold a guy a delete & Stg1 file for the car listed above (I am a Kess3 slave). After several hundred miles the car started missing and sets P2149. I should say here customer is at a distance and shipped me the ecu and I bench flashed it. Just this week I sent him my laptop and Kess and I remoted into the laptop and did a virtual read of the ecu and flashed the vr file. Car still has same problem. Is there enough difference between the vr file and the ori from the bench read that this could not be a accurate test? On other time I had a vag car doing a very similar thing and it was because of a bad tune file. Customer already replaced fuel injectors and checked out wiring. Any advice is appreciated.

Can you return it to the VR file without the recalibration? This would ableist tell you if thats the problem.