Hello everyone,
I hope to finally find some suggestions and hopefully solutions for our Transit camper. We bought this camper from a private seller who converted an ex "Scottish water" van into a camper. Though the conversion is very nice done and the seller told us that there was a "knock" at the engine , he told us that it normally fast and cheap could be fixed. Long story short.... we're 4 months further and still after spending quite some time in the garage it's still not running smoothly, the knock is still there despite changing the injectors and a part from the engine loom.
Anyway.... The car is at the moment back home and I've been recently googling a lot now and found that the ECU could be the problem. But..... my question is .... who can test that out and if possible repair that. It is an MK 6 2.2 diesel and I have also an ECU from a more recent one but that's an MK7.... can that be switched maybe?
Looking forward to some suggestions.

