 Fuel Pump will not run, Checked fuse, relay, etc |
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| BCinSC |
 May 29 2011, 08:42 AM
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#1
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Nothing but Trouble  Group: Members Posts: 138 Joined: 8-June 03 From: Wakefield, MA Member No.: 800 Region Association: North East States  |
So Blanche ('73 White 914-4 1.7L) was running great last summer until she simply stopped on I-95 in Burlington, MA. Simply no spark anymore. Having no time to deal with it, she sat until today. I figured out the spark problem, but now the fuel pump, won't. Familiar with this type of issue, I open the relay board and check the fuse and the relay. I've got 12V where I'm suppose to - both sides of fuse, pin85 of FP relay when key on (FI Brain energizes to close circuit to join pin30 and pin87 I believe). PIN13 of connector closest to firewall, which diagram says goes out to FP itself, shows continuity to ground, so I'm guessing broken wire somewhere. Sounds reasonable/plausible? Fuel Pump was functional before I put her away.
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| BCinSC |
May 29 2011, 10:11 AM
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#2
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Nothing but Trouble Group: Members Posts: 138 Joined: 8-June 03 From: Wakefield, MA Member No.: 800 Region Association: North East States |
Argh. Swapped pumps and same deal. Could FI Brain be disabling somehow? Wiring seems good and both pumps function while connected directly to 12V. Jumping 13 and 14 as you suggest DOES run pump (but I shouldn't let it for more than a couple seconds, right?)
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| SLITS |
May 29 2011, 10:16 AM
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#3
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
QUOTE(BCinSC @ May 29 2011, 09:11 AM)  Argh. Swapped pumps and same deal. Could FI Brain be disabling somehow? Wiring seems good and both pumps function while connected directly to 12V. Jumping 13 and 14 as you suggest DOES run pump (but I shouldn't let it for more than a couple seconds, right?) As long as you have fuel flowing thru the system, you can run it as long as you want. Fuel cools the motor on the pump. Dry .... not so good as it will overheat and kill the pump. |
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Posts in this topic
BCinSC Fuel Pump will not run May 29 2011, 08:42 AM
SLITS Pumps do gum up or fail.
Run hot wire to + termin... May 29 2011, 09:05 AM
Elliot Cannon
Pumps do gum up or fail.
Run hot wire to + termi... May 29 2011, 09:13 AM SLITS
Pumps do gum up or fail.
Run hot wire to + term... May 29 2011, 09:37 AM Elliot Cannon
[quote name='Elliot Cannon' post='1485200' date='... May 29 2011, 01:38 PM BCinSC Is that Gumby with a Blunt? Anyway, I think you a... May 29 2011, 09:12 AM Tom Bruce,
Just went thru this yesterday with anot... May 29 2011, 09:12 AM BCinSC I don't get it. I have 12V at Pin30 of Relay.... May 29 2011, 10:26 AM BCinSC Mess with it long enough, and miraculously, it wil... May 29 2011, 10:34 AM Tom The relays sometimes don't fit tight in the so... May 29 2011, 10:51 AM BCinSC Not quite the contortionist I used to be. Can... May 29 2011, 12:09 PM BCinSC Hooked up known good spark plug to wire #1 and cra... May 29 2011, 12:17 PM benalishhero No spark? Are you running points and condensor? May 29 2011, 01:03 PM BCinSC Yes. Both relatively new (couple thousand miles a... May 29 2011, 01:34 PM BCinSC I reiterate that I was doing 60+ on the highway wh... May 29 2011, 01:36 PM Elliot Cannon I just had a crap load of electrical problems with... May 29 2011, 01:42 PM BCinSC Checked points more closely and found that the met... May 29 2011, 02:59 PM djm914-6 Sounds like you're having fun. WHo's watch... May 29 2011, 03:08 PM BCinSC Kids in Maine. 3 dogs in kennel. Other 4 milling... May 29 2011, 06:36 PM djm914-6 That's odd.... was the registry open today? May 29 2011, 06:57 PM |
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