Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

np opower to fuel pump,or relay

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Old Mar 19, 2008 | 07:49 AM
  #1  
bbsr72's Avatar
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From: newcomerstown,o
Car: 91 formula
Engine: 350 tpi
Transmission: auto
Axle/Gears: poss
np opower to fuel pump,or relay

ok, i've put new fp relay,fuel pump itself, oil sending unit, checked all fuses .even one by fender well. still no power.this car ran fine b4 winter then i've left it alone until this morning. battery tested at 11.98. and it barely cranks car over. nevermind the fuel pump fuse (under hood) was blown now i gotta figure out why it blew.

Last edited by bbsr72; Mar 19, 2008 at 09:28 AM. Reason: misspelling supposed to say no power
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Old Mar 19, 2008 | 06:05 PM
  #2  
Ward's Avatar
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From: Rowlett, TX
Car: 1988 GTA
Engine: 5.0 TPI
Transmission: T5
Axle/Gears: 9 Bolt, 3.45
Re: np opower to fuel pump,or relay

Did you also check the fusible link, which is on the same wire as the FP fuse which was blown? I would check for continuity beween the battery side of the fuseholder, and the positive battery terminal. If there is continuity, check resistance, and see if its excessively high. Also, I would try cleaning the battery terminals.
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Old Mar 19, 2008 | 10:55 PM
  #3  
bbsr72's Avatar
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Joined: Feb 2006
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From: newcomerstown,o
Car: 91 formula
Engine: 350 tpi
Transmission: auto
Axle/Gears: poss
Re: np opower to fuel pump,or relay

ut oh somethings wrong then bcuz mine doesn't have a fusible link, where you described. better put one on it .what size do i need?
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Old Mar 20, 2008 | 08:42 AM
  #4  
bbsr72's Avatar
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Joined: Feb 2006
Posts: 682
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From: newcomerstown,o
Car: 91 formula
Engine: 350 tpi
Transmission: auto
Axle/Gears: poss
Re: np opower to fuel pump,or relay

there is one it was just wrapped up in a bunch of tape. thanx though.
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