hi guys,
got a 2003 stilo 1.2 8v,
changed the dashboard done the proxi alignment, changed the crank and camshaft sensors, done the value reset procedure,

when the gas pedal is put to the floor on flat roads the car doesnt move plus the status lights of my interface stop, i lose the data on screen i.e all data dissapears and the car loses power.

ive seen a post on here and someone said about the brakes causing it, i cant see how brakes can cause a comms failure between the laptop and the ecu.

when idling its fine, no faults anywhere on the car present.

anyone got any ideas, im guessing the battery is not man enough or the ecu is at fault (in direct heat from the engine).

any help would be most appreciated.