TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

Replacement fuel pump

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Old Sep 15, 2023 | 07:45 PM
  #1  
88Form's Avatar
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Replacement fuel pump

My fuel pump just gave up. I had to jump my bird, got it started, moved the other car out of the way and when I came back my bird had died. Turned the key off and back on, no priming.
I've troubleshot it and it must be the pump, i had someone turn the key while I probed the connector above the rear axle and it get 12 volts for a second or 2 and my fuel gauge is working. I'm all ears if anyone has any other ideas as not looking forwards to dropping the tank.
But I'm looking for a replacement pump and trying to figure out the correct one. I see a lot of 255 lph pumps but some people are saying that's too high a flow for stock. And stock 305 TBI is fine with me, I want it to drive no plans to do anything mad yet.
I see people mention the ep241 but that seems to be sold out in a lot of places. If someone has a link to a site that'll ship it to Ireland easy enough great but how does this one look:
https://www.summitracing.com/parts/VPN-5CA400BX
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Old Sep 15, 2023 | 09:29 PM
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From: central Texas
Car: 91 TA Vert WS6-94 TA Vert
Engine: 5.0/5.7 LT1
Transmission: 700R4
Axle/Gears: 2.73-3.42
Re: Replacement fuel pump

A couple of months ago I replaced the pump in my 91 TA Vert, 305 TPI.
Bought the AC Delco/Delphi FEF 110 fuel pump from rockauto.com.
I believe they ship worldwide
Make sure you get a new O ring and strainer, but im pretty sure they come with the pump.

Last edited by Roorancher; Sep 15, 2023 at 09:35 PM.
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Old Sep 17, 2023 | 07:15 PM
  #3  
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Re: Replacement fuel pump

You have power TO the rear of the vehicle, above the rear axle.

1. Do you have power to the actual fuel pump? The in-tank wire harness is known to corrode.

2. Do you have suitable ground for the pump? Easy enough for the pump to have power, but no ground due to corroded wires, or a corroded connection to the body.

It could be that the pump truly has failed. I'd be checking the wiring first.
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