lol there aint much you lot dont know is there

different ECU capability.

Although the diesel ECU has the ability to store multiple maps.

That's interesting, how many maps can it store?

Couid you have a 'town' map, a 'fast road' map, a 'motorway' map etc?

That's interesting' date=' how many maps can it store?

Couid you have a 'town' map, a 'fast road' map, a 'motorway' map etc?[/quote']

3 AFAIK and they are totally seperate maps; Common choices are 1.standard, 2.performance and 3.high performance or for those with NOS high performance is replaced with a NOS specific map.

Petrol remaps that claim to have multiple maps are just a switch that alters boost and timing to different levels as a global linear change.