you know ...thinking about it, I seem to remember a tinny rattle from my car when I originally loaded the map, but it didn't last more than 30 seconds or so and I thought it must have been down to timing changes taking place before Auto ECU adjustments caught up.
Is yours doing it constantly on idle now you've driven it a few miles with the new map, or has it stopped?
I get that rattle each time i put a new map on, when i first emailed superchips about that and they said
Hi, possibly diesel knock, a hangover from the OBD communications whilst all the control units sync back up again on the CAN BUS. Provided it doesnât do it anymore and the car runs well with no warning lights visible, you have nothing to be concerned about.
Haven't had a chance to go for a more extended drive yet though, so too early to tell!