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[T3] FI fuel pump relay


My FI fuel pump relay failed a few weeks ago. It started clicking a bit while I
was driving, then whirred for a few seconds, then went off. After a few
attempts to restart the car I gave up. I was near home so I got a lift home for
a few tools - the few I didn't actually have in the car at the time, of course.
Thanks to a great deal of lurking on this list I immediately knew what the
problem was, and that all I had to do was bypass the relay and hey presto,
trouble free drive home. So thanks everyone for helping before I even had to
ask.

I took the relay out and tested it with a spare battery, and it seems fine. I
can get it to whirr by gently touching the battery leads to it, but that is to
be expected.

If it's not the relay itself, what is the next most likely cause of it whirring
- my guess is the FI power relay ?

If I need to replace it I assume a standard 12V SPST relay will be fine? The
fact that the original has a special 311 part no and is a funny shape is not
relevant? The tag numbers are the same as almost any other relay.

While I was poking around under the dash, I noticed that of the wires from the
FI to the relay, the 2 which switch it are there (grey to 85 and blue/yellow to
86), but the red one has been cut. According to my Bentley this should be
current track 5, going to the ECU. Is this going to be a problem? The car seems
to be running fine.

Thanks.

--
Matt. UK.
'73 1600e Fbk.

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