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Topic: No voltage to fuel pump - 1982

in Forum: C3 Electrical


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No voltage to fuel pump - 1982 (1/8)
 7/26/03 5:12pm
63Grand SportGuy
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Vette(s):
1963 Grand Sport Coupe


Joined: 7/26/2003
Posts: 2

After doing more work on my 82 Corvette I have discovered that the 8 volt reading at the fuel pump leads is for the pump gauge. I have zero volts at the fuel pump lead but the fuel pump fuse is good. Is there a relay or something else in the fuel pump circuit that would give a zero voltage reading to the fuel pump while the fuel pump fuse is good?????? Thanks John
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No voltage to fuel pump - 1982 (2/8)
 8/5/03 9:02pm
redvet
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Southport, NC - USA

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1982


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Posts: 47

I agree with 82dukman in his reply to your first post. The first thing to do is check the fuel pump relay and its circuitry. It is located in with the ECM in the battery compartment. If the relay itself tests good, you'll have to check to see if it is being energized by the ECM. If it is not, you'll have to troubleshoot that problem. If it is, you most likely have a wiring problem between the relay and the pump leads.
No voltage to fuel pump - 1982 (3/8)
 8/6/03 11:47pm
82dukmanLifetime Member
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 redvet said: I agree with 82dukman in his reply to your first post. The first thing to do is check the fuel pump relay and its circuitry. It is located in with the ECM in the battery compartment. If the relay itself tests good, you'll have to check to see if it is being energized by the ECM. If it is not, you'll have to troubleshoot that problem. If it is, you most likely have a wiring problem between the relay and the pump leads. 

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No voltage to fuel pump - 1982 (4/8)
 8/22/03 8:48am
82X-FireVette
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Clermont, FL - USA

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1982 White Coupe


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It sounds as though the fuel pump relay has failed. I would also check the computer for any stored codes. The relay is controlled by the computer.
Re: No voltage to fuel pump - 1982 (5/8)
 2/11/16 2:09pm
manu
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where is the fuel pump relay  located on 1982 corvette. I have looked behind the passenger seat. I do not see any wires going below viper motor on the driver side. These are the two places I read in various forums, I do not seem to find it anywhere
Re: No voltage to fuel pump - 1982 (6/8)
 2/11/16 10:26pm
Adams' AppleLifetime Member
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#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


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Driver side rear compartment, in the same area as the battery, and the ECM(Electronic Control Module) for the engine.





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Re: No voltage to fuel pump - 1982 (7/8)
 2/12/16 12:04pm
manu
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Thanks a lot.  Will look for it this weekend and get back
Re: No voltage to fuel pump - 1982 (8/8)
 2/19/16 1:23pm
lakeside49
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CANTON, MI - USA

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`82 Shark


Joined: 10/13/2013
Posts: 21

Another possibility is your oil pressure sensor. The ECM will shut off the fuel pump if it senses a catastrophic drop in oil pressure.

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