Originally Posted by
andrewg
they are bad for melting the solder where the relay contact is on the circuit board of the fuse box.. open up the fuse box and you may see it..it may make the connection then arc out when warm or under more load
will do Andrew going over there sat to sort it for him btw its had a new fuse box according to the history but i'm going to strip it and find out
Also the fuse that hes pulling out is the weber fie hego sensor

lambda sensor which is odd but thinking about it the fuel pump wiring is normally linked the the lambda sensor so that could make sense
Paul