No,
The pump gets its power through a relay. Unfortuantely, it is not fused
so if it is drawing excessive current, it will load down other circuits.
Does the pump run with voltage connected directly to the leads? The is
also a connector near the air filter for the pump. Look for bad
connections and a bad relay.

Dennis.

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of Austin
Sent: Wednesday, November 12, 2003 1:53 AM
To: vanagon@GERRY.VANAGON.COM
Subject: can a locked fuel pump kill an ECU?

  I go out to start the bus ('87) & after running for ~10 seconds it
dies.  Finally trace that the fuel pump is locked, won't turn at all
(yeah
I shoulda installed a filter between the tank & the pump long ago).  But
now the weird thing is that there is no 12v to the pump!  Disconnecting
the
ECU & bridging contacts 3 & 13 of the connector to the ECU (per Bentley)
there is solid voltage to the pump leads - & obviously the 2 relays in
the
black box over the coil work fine.  Re-connect the ECU & no voltage to
the
fuel pump relay, or of course to the pump itself.  Not being an EE the
limit of my electrical trouble shooting abilities is to open the ECU &
the
idle stabilizer unit (the box behind the right taillight) and checking
for
cold solder joints. NADA.  Is it possible that the locked pump burned
out a
transistor or something else in the ECU that should be switching voltage
to
the pump?

Austin