Lewith,
Re reading your post. It does sound like the fuel pump relay as you note that there is no sound from the pump. Normally with M16/T16 one turns the key and hears the pump prime before turning to ignition. Are you sure that on your car the relays are not on the inside of the firewall just above the transmission tunnel? In addition look at the Morganatica site (Electrics/relays) which mentions a plus eight but could be relevant.
Last edited by meabh; 02/04/18 08:27 PM.