I wouldn't expect Revo to diagnose a fault over the phone or email. But they don't listen to their so called network of trained and knowledgeable dealers. I know through bitter experience.
Factory stock isnt always full factory stock either. Well at least not the same Model Year car
No, but it will be the exact same software version that was flashed to the ECU on the production line as well as any updates that have been added. The Bosch hardware and software number will be the same as well as checksum values, VAG number, chassis number, software version etc.... I know this as I have checked many cars that we have flashed with full stock software from the Revo database and Winols (map editing software) always shows the file is a 100% match to known Bosch factory files.
As for who foots the bill, we offer all customers wether they have Revo software or our own software free diagnostic testing for the full duration of their ownership of the car, wether its engine related or not.
Problem is that people will ALWAYS blame the software, but if the software was at fault then EVERY car out there with the same version of REVO would have the same problem, and after we spend time diagnosing a fault it is a component on the car that is at fault 99% of the time.
As for customer care from Revo, the moment I saw this thread, I rang a revo technician on his mobile out of hours (around 7pm on a saturday night) and they spent 15-20 mins talking through the scenario and possible solutions, cant ask more than that can you?
And as yet nobody knows if its a software fault, it could be anything such as faulty lambda, faulty pcv, boist leak, vac leak, dodgy cat, contaminants in combustion i.e burning oil, breather problem.........