No power at fuel pump - 1996 960

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Old Nov 20, 2008 | 11:06 AM
  #1  
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Default No power at fuel pump - 1996 960

Why is there no power at the intake fuel pump?

I checked fuses and relays. The fuses are good, relays are good.
I have power at one (1) of the 87 pins in the relay.

Does that circuit go through the ignition.

Another question is related to;
Why are there two 87 pins and where do they both go too?
I don't have access to a wire diagram.
 
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Old Nov 20, 2008 | 11:43 AM
  #2  
tech's Avatar
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Default RE: No power at fuel pump - 1996 960

Are you testing for the first 5-10 second the key is turned on?
The pump only primes for about 5-10 seconds then turns off unless you are cranking the motor over.
 
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Old Nov 20, 2008 | 02:47 PM
  #3  
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Default RE: No power at fuel pump - 1996 960

Yes, testing is being done at that point.

Starting to think it could be a faulty wire.

Have you seen this be a cause? Whats the other 87 for?
 
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Old Nov 20, 2008 | 04:00 PM
  #4  
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Default RE: No power at fuel pump - 1996 960

It is possible.

2/23 is the fuel pump relay it looks like it goes to the ECU or something like that.
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Old Nov 21, 2008 | 03:12 PM
  #5  
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Default RE: No power at fuel pump - 1996 960

Thanks for the diagram.
I was able to find that, in the end, it was a faulty ground line.
Did tests and found fuel pump was working.
Got new relays and realized the old ones worked fine.
Got a new fuel filter, etc.

Thanks again for the help.
 
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Old Nov 21, 2008 | 04:12 PM
  #6  
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Default RE: No power at fuel pump - 1996 960

Glad I could help.
 
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