Question about 1989 Porsche 928

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1985 928s puel pump not working no power getting to the pump so i wont to no which relay and fuse need to be changed but have no wirring diagram to see whitch one to check and there are so many fuese nad relays dont no were to start can anyone sedn me a copy of wire diagram,fuse layout and relay layout THANKS this would be much appreciated

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They are relay 17(XV11) fuse 22 numbers from left to right

Posted on Sep 19, 2009

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Fuel pump relay diagram


To start with not getting gas so you changed spark ????what spark.
Go to fuse box find pump relay and get it tested if ok then check feed at relay if ok go to pump check power with test light first and then check power to fuse box.[ if you havent already ].

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Location of the fuel pump relay on a 2002 jaguar xtype 3.0


No FPR fitted.
Works via fuel pump module.
Module powered from fuse 81 on diagram of fascia fuse box. This fuse gets its feed from the ignition relay.


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Mar 14, 2014 | 2002 Jaguar X-TYPE 3.0L

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Car won't crank check for fuel and no fuel put gas in and check the fuses everything seams good check for power going to the fuel pump with the switch on and there is no power to the fuel pump. We


Fuel pump will only have power for 2 seconds unless engine is cranking or running. Most common cause for ur problem is a broken dowel pin in the cam gear causing the timing to be out just enough to shut itdown

Apr 17, 2013 | 1996 Dodge Neon

1 Answer

I need a gmc safari diagram for fuel pump 1991


I don't usually do diagrams due to copyright laws.
From the fuel pump you have a gray wire and a black wire.
The black is ground and the gray is power from both the pump relay and the oil pressure switch.
The oil pressure switch provides power to the pump once the engine starts.
At the relay, you have a green and white wire that provides power from the ECM with the key switch on. You have an orange wire that provides power from a 15amp fuse.
The gray wire going to the pump, and a black and white wire for ground for the relay.
The ECM provides power for 3 seconds when the key switch is turned on to boost line pressure for startup.

Jan 30, 2013 | 1997 GMC Safari

1 Answer

Changed axel now my buick wont start


I can't imagine how that would be possible unless something in the fuse box or wiring harness was damaged while you were working on the axle.
I would check the fuel pump relay for power and see if it is sending voltage to the pump. You may need a book to get the wiring diagram for the circuit.

Dec 13, 2012 | 1999 Buick Regal

1 Answer

What is the VATS system and what is the RED wire for on the fuel pump relay harness? does it need to be plugged in?why is there no current from the ecm on the green wire to the fuel pump relay harness wit...


The Vats system is the cars anti theft security. If the ignition does not read that chip in the key, the starter will not turn over and the injectors might not work. I dont think the Vats is effecting your problem, but here is a link about the security. http://vatspasslockpasskeysecurityhelp.yolasite.com/

May 30, 2011 | 1994 Oldsmobile Cutlass Ciera

1 Answer

Dash lights and radio not working but everything else works no power at the fuse for illum is there a relay hiding someware is there some ware i can find a wirring diagram online


You need to check the headlight switch,but there should be a fuse for the instrument lights that can be found in the owners manual.The radio may be the problem if the fuse blows again,unplug it to confirm.

Nov 06, 2009 | 1999 Dodge Ram

2 Answers

1988 subaru gl 1.8..no power to fuel pump, fuses and links are good. pump works fine with power probe, just not getting power to it..diagram shows black and yellow wire to pump. it is in fact a blue...


The blue wire changes to Blue/White. It gets power from the Fuel Pump Relay. Fuse number 11 is the power source. The relay is up under the dash panel, blue connector

Nov 04, 2009 | 1988 Subaru GL-10

2 Answers

Thunderbird fuel no power


have u checked the fuel pump cut off switch?
it is in the truck on the drivers side.

Apr 18, 2009 | 1989 Ford Thunderbird

2 Answers

Fuel pump not getting power 1985 928s porsche


chck out this site, it has free diagrams etc in pdf format:-
http://www.onlinefreeebooks.net/automotive-machinery-power-equipment-ebooks/porsche/wiring-diagram-porsche-type-928-s-model-89-pdf.html

Your problem can also be with the Bosch ECU, these are prone to failing and also control the fuel pump, they can however be rebuilt.

Jan 04, 2009 | 1989 Porsche 928

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