Hi, I have a new Gen 4 (my 2nd one).... my 1st 1 had a full arrow system and remap done at the same time. My new 1 has had the system transferred from my 1st but map not yet done as still running in. Has anyone had a full system fitted before a remap and if so did you get the engine warning light? And error message saying Engine!? The dealer said to buy a healtech module but I'm concerned there may be issues?