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Join Date: Mar 2003
Location: West Haven, Connecticut
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Send a message via AIM to TheCooler
Not running again .. No voltage at fuel pump

Ok now im really angry at this damn car...

The car was running perfect. Now if I jump the fuel pump directly from the battery and start the car it runs perfect. I got my voltmeter out and there is no voltage or little voltage going to the fuel pump .02V. There is resistance between the 2 fuel pump wires around 20 ohms (whats up with that)

So I jumped 87b and 30 to see if the pump would get voltage and still the same readings....

So...where do you think my problem is now? The car runs perfect if the fuel pump is jumped to the battery but NOT if I jump 87b and 30 at the relay....

Any insight would be helpful

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-2002.5 GTI VR6 24V 6SPD
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-1999.5 Jetta VR6
Old 12-16-2006, 10:10 AM
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Im reading something now and should i be running the triple jumper from 30 to 87 and 87b?
__________________
-2002.5 GTI VR6 24V 6SPD
-Kalahari Beige 89 Porsche 944S2
-87 VW GTI 1.8 16v
-2007 Ford PIMP(free)star ...company car....
-1999.5 Jetta VR6
Old 12-16-2006, 10:22 AM
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Yes, you will need the triple jumper, connectiong 30 and 87 and 87b. That will provide battery voltage to the fuel pump and the DME.

If you don't have the fuel pump running after installing the jumper, there is a break in the wiring between the fuseblock and the fuel pump.
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Good luck, George Beuselinck
www.944ecology.com
Porsche Deconstructor (tm)
We buy 944s and sell 944 parts (845-379-1944)
We rebuild torque tubes and instrument clusters for 944/968/928
Old 12-16-2006, 10:28 AM
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and if it does work it could be my DME or DME relay? Even though i tried 3 different dme relays.........hah
__________________
-2002.5 GTI VR6 24V 6SPD
-Kalahari Beige 89 Porsche 944S2
-87 VW GTI 1.8 16v
-2007 Ford PIMP(free)star ...company car....
-1999.5 Jetta VR6
Old 12-16-2006, 10:38 AM
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Quote:
Originally posted by TheCooler
and if it does work it could be my DME or DME relay? Even though i tried 3 different dme relays.........hah
Yes, it could be the DME, since the DME sends a signal to the relay to activate the fuel pump. (In case of an accident, the last thing you want is the fuel pump running on to create a fire hazard.)

We have sold a surprising number of DMEs to fix that problem.
__________________
Good luck, George Beuselinck
www.944ecology.com
Porsche Deconstructor (tm)
We buy 944s and sell 944 parts (845-379-1944)
We rebuild torque tubes and instrument clusters for 944/968/928
Old 12-16-2006, 10:52 AM
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nope ..didnt work ...there is a clicking noise in the engine bay whenever i hook the wire up. What the hell would be making that noise? The noise seems to be coming from around the master cylinder...

__________________
-2002.5 GTI VR6 24V 6SPD
-Kalahari Beige 89 Porsche 944S2
-87 VW GTI 1.8 16v
-2007 Ford PIMP(free)star ...company car....
-1999.5 Jetta VR6

Last edited by TheCooler; 12-17-2006 at 06:10 PM..
Old 12-17-2006, 06:07 PM
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