RE: [doc] Fuel pump , Lack of power

["mgutkowski@xxxx" <webmaster@xxxx>]

Hi Chris

When you say you've run a live wire to the pump, have you done it by
bridging the connector to the RPM relay, or literally running a wire to the
pump?

If you unplug the RPM relay (black box under the lock module), using a jump
wire (this works when the ignition is off BTW) temporarily jump the brown
wire to the White/purple wire. These are on opposite corners of the 6-way
D-shaped connector. This should make the fuel pump run and the frequency
valve buzz.

If this works, I'd suspect the RPM relay. If it doesn't it could either be
the feed to the RPM relay (fuse no 7 according to the diagram), or as you
suspect, the connections on the white/purple wire.

If running a hot 12v feed to the pump makes it run, then it's UNlikely to
be the ground path through the inertia switch - another common cause of
fuel pump problems.

Martin

Original Message:
-----------------
From: Chris Parnham cp@xxxx
Date: Mon, 28 Oct 2002 22:50:33 -0000
To: dmcnews@xxxxxxxxxxxxxxx, doc-uk@xxxxxxxxxxxxxxx
Subject: [doc] Fuel pump , Lack of power


Lists,

I'm sure I read recently, a post concerning "lack of electrical power " to
the fuel pump. I've changed all the usual relays etc, but it is still dead
at the connector at the fuel pump.
If I bridge in a live wire, the pump runs, as does the buzzing thingy in the
engine compartment. My question is, where is a dirty pug or contact between
the power supply and fuel pump? I've tried to search the archives before
and get hopelessly lost! Can someone help or give me the direct link please?

Chris P BTTF/20049



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