Do people remap there cars to have less poke for extra MPG?
I have been educated by this forum that the extra poke means the car has to work less hard which in turn gives better MPG, is this not right?
I don;t see why a remap should fail an MOT just as long as the insurance company is aware that you got more poke which in turn could make you a possibly higher risk driver with the temptation to use the extra poke you never had before the map.
MOT's are gonna get strange, alot of fannying about before going for your test then wack it all back on that is all that will happen, like the HIDS, it won't stop the numpties that have HIDS without having a projection ball to focus the light.
some remap out there are very poor, some compromise emission control for performace under cruise or part throttle conditions, there only should be fuel changes when under load, there should be a body to govern remap and what calibrations should be kept the same,
You can also look at it this way, a stock AUQ 180bhp remap with flash direct to an AUM 150bph ecu, you could class this as a remap? but the AUQ mapping has far better emission controls.
There is NO way an MOT tester could see if an ecu is mapped, the only way to find out is to have a copy of every stock factory map checksum, then read the ecu and compare the checksumms. The easy way around this is change ecu login codes, inplant no read tags, and/or run remove the ecus runtime checksumm and leave the stock checksum in place.