V8 fuel pump

Hi, newbie requesting asisstance!

1990 110 V8 no power to the petrol pump... no wiring diagram either... anybody know where to look for possible problems? Are there any fuses relays I need to check??
could be an early bath otherwise... wife getting severly hacked off with the unreliabilty... wants me to sell/scrap/catch fire to the Landy and get something Japanese!!!

you could try 'hot wire' it just to make sure its the wiring first then back track along the vehicle, must have a circuit from the ignition and a relay in there somewhere