The only new procedure which will involve plugging anything in will be for engine fault codes I cant quite remember from the coarse iv being on but I think they said that before the car is even looked at for mot the ecu will be read for fault codes and if any errors are found the car cant be tested … and they already do this in America I think?? And its coming over here I know that…. So weather they decide this means checking for a remap I don’t know but I cant see that one myself as long as it meets emission regulations then where is the problem???
This is part of the EOBD2 rules, the yanks have had this for a few years now. During the USA equivalent to the UK MOT the car gets plugged in to the obd port and the emission rediness setting get scanned and checked.
If there are any failed rediness setting then the car will fail. But a remap will not cause the rediness settings to flag up any fails. Its when you start to alter PARTS on the car which effect emission controls such as EVAP SIA and CATs.
The yanks are mad on tuning there 1.8Ts and 2.0TFSI and have not issues at all getting there annual test pass, but if you read up its only the guys running big turbos, sports/decats, sia and evap delete.
But if you find a really good tuner who has all the map setting files, they can fool the sytems rediness flags and get you a EOBD2 rediness pass even with all the emission control parts stripped out.