Ford Focus Mk2 1.6 LX 2005 (55) - Fuel Pump Relay Location and Code - 19chris89
I have been having very intermittent problems with the car not starting. It cranks fine but won't start up when it has this problem. Most of the time it starts perfectly. Taking the key out and re-attempting solves the issue and the car starts second time. This leads me to believe that there is an issue with the priming of the fuel pump when turning the ignition on. So there maybe a fault with the fuel pump relay/fuse which would create this intermittent issue.

However the manual which came with the car doesn't give a diagram of all the relays/fuses under the bonnet so I am not sure which one it is for the fuel pump relay?