[wookwook]

do with the doors closed too. don't know why it matters but it does. radio on is ok.
light the dash up with engine off. yeah if you sent it over already they should notice any issues. just make sure to do this way or it wont load the tune. you might see some misfires and awkward contortions on the next cold start after loading it but it will sort it self out. If you have access to resetting the Long term Fuel Trim LTFT - do that about a few times over the course of a day. get ur maf re-read with a long pull and have them look at STFT tables and send you back a fine tune adjustment for the MAF.

didn't they even give you a guide ?