Re: [DML] A number 7 fuse short circuit

["B Benson" <delornut@xxxx>]

I guess I should have been more specific. The black/purple wire goes between
the fuel pump and the inertia switch. The white/purple goes from the fuel
pump to the RPM relay. The number 7 fuse goes to the main fuel relay which
divides things between the ECU unit, the frequency valve, and the RPM relay.
I've seen a couple of cars that didn't have continuity between the inertia
switch and the black/purple connection at the pump. If the wire had broken
and eliminated continuity it's just as possible it frayed to the point of
shorting which would blow the number 7 fuse. Might not be the answer but if
all the relays have been changed and the connections at the number 7 fuse
are ok, then that's where I'd start looking.

Bruce Benson


> The wiring for the fuel pump runs forward and around the left >front
corner of the car. It then proceeds rearward to the inertia >switch. If you
look at section 3, subsection 7, group 2 in the >parts manual you'll see all
of this except the inertia switch itself. >There are few plug ins along this
wiring loom which may be the >culprits or a stressed wire could be shorting
out somewhere >along this route. I heard that wiring loom was bent too
sharply at >the left front corner in some cars and that caused a break in
>some individual wires. Try disconnecting the wires from the fuel >pump and
running temporary wires to the inertia switch and see >if the problem goes
away.

> Bruce Benson