hi all. in need of a std ecu. trying to illiminate the problem ive got with my R. it just wont pull at all. turbo seems to be boosting ok but its smoking from air filter when i drive it for a bit and the plugs are black. so im changing bits to illiminate things. done afm with no change so i thought ecu may be at fault. tried a fault code check but the light doesnt even come on when i put the wires in the plug. anyone help.
