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88 Camaro fuel problems

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Old Feb 11, 2011 | 01:55 PM
  #1  
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88 Camaro fuel problems

i have a 88 camaro that i got from a friend. when i got it it wouldent start unless i poured gas into the carb. i replaced the fuel pump, fuel filter, and the fuel relay and it's still doing the same thing.please help i'm out of ideas
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Old Feb 11, 2011 | 03:40 PM
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From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Pump Slump

When you turn the key to the RUN position can you hear the pump run for a second or two?

When you repeat the test you have to wait for about a minute IIRC.


Happy Racing!



If Your Communications Antenna Is Not Shaking At Idle, Your Cam Is Too Mild

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Old Feb 12, 2011 | 10:45 AM
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Re: 88 Camaro fuel problems

i think i figured out what the problew is. the female end of the fuel relay is fried, does anyone know where i can get one without having to replace the whole harness
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Old Feb 12, 2011 | 11:15 AM
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From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: 88 Camaro fuel problems

Dealership sells them - not cheap. Hvaen't seen them anywhere else. This is for the oval relay, right?

You know, any relay will work. You can get a standard square shaped relay and connector/pigtail and just splice it it. Something like the 40amp 5-wire relay and the 5-wire pigtail that are both ON SALE here - less than $15 investment, and then you can always use a standard square-based relay:

http://www.wiringproducts.com/conten...ive-relay.html
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Old Feb 12, 2011 | 05:47 PM
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Re: 88 Camaro fuel problems

actually i dont need it. i really found the problem this time. a fuse by the battery was blown, i replaced it and the fule pump started pumping through the fuel line wich was currently disconnected, but as soon as i pluged it into the carb it stoped working. but the car starts when i pour fuel into the carb. so im offically confused and really need help!!
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Old Feb 12, 2011 | 09:24 PM
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From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: 88 Camaro fuel problems

The oil pressure sending unit is a backup fuel pump circuit - anytime the OPSU senses oil pressure, the fuel pump will run if it's not already being run by the ECM/relay circuit.

So - your relay connector is still bad, and you still need to replace it. Your fuel pump is getting run from the OPSU circuit, which is connected straight to the battery via that fuse you replaced. Doesn't matter if the key is in the car or not, the fuel pump will run if 1) that fuse is good and 2) the OPSU senses oil pressure.

So - if the car was not running, and you replaced that fuse, then it's quite possible your OPSU is bad as well - sensing oil pressure when there is none and making the fuel pump run.

Make sense?
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Old Feb 12, 2011 | 09:34 PM
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Re: 88 Camaro fuel problems

so why did it stop when i pluged the fuel line back into the carb
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