ive got no feed to the main ecu on my s2 rs turbo!!
does anyone know wot colour the wire is and where it comes form???

 

Which ECU? Fuel or Ignition? It ultimately comes from the pink relay under the dash.

 

Rick, the pink relay relies on ignition pulses to run the fuel pump so the car has to at least have a working ignition system before that relay will switch on. That means the ignition ECU has to be switched on first to be able to switch the coil to get the pulses for the tachometric relay....

I can repair them pink relays as well...

Daft question..have you checked the heated seat fuse? Don't ask, just do it!