Bad Fuel Pump?

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Jun 8, 2003 | 12:19 PM
  #1  
I was driving home from the movies friday night and my car was acting weird. The volts were at a constant 10 volts and the car was surging at stop lights, it was running fine before this. Then it stalled on me. I tried to restart it and i noticed that the fuel pump isn't turning on. Me and a friend pushed it up the block to a very lit parking lot where i kept it over night. I went back saturday morning and it started up. I drove it home and shut it off. I tried starting it again and nothing, it just kept cranking. I replaced the relay but that didn't do anything. I let it sit again because it was raining. I tried starting it again this morning and it started, i noticed the fuel pump was louder then normal i think, when i put my ear near the rear passanger tire it was very noticeable, even over the exhaust. Also I noticed a little white smoke coming out of the tail pipes and it smelt rich, but maybe that's unrelated. I shut it off to go inside and get my glasses and wallet so i can go for a drive to see if it drives normal but when i got outside it didn't start at all.

Here's the diagnostics i did:

Checked the connection of the wires to the connector with a multimeter, they were loose. They have zero ohms of resistance between each wire and their corresponding socket. The ground wire is good, one wire is getting a constant 2 - 3 volts, another one gets .5 volts when i turn the key.

I replaced the relay. Sometimes it only clicks when i turn the key to start. Shouldn't it click when i turn it to Run?

I didn't get to check the fuel pressure when the fuel pump actually does turn on.

I just replaced the pump in the begining of April, it's a little over two months old. I replaced it with an autozone pump though. It does have a lifetime warranty. If it is the pump i'm gonna bring it back, argue with the people and hopefully get my money back and then buy a walbro pump like i should of in the first place.

Any suggestions?
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Jun 8, 2003 | 01:55 PM
  #2  
There is no injector pulse, on either side of the fuel rail. The computer grounds are all good, it's getting 12 volts and the injectors are also. How do i use the aldl connector to turn the fuel pump on? Jump terminal A and E or something?
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Jun 8, 2003 | 02:35 PM
  #3  
Fuel Pump turns on when i jump it. This is leading me to believe it's the computer.
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Jun 8, 2003 | 04:05 PM
  #4  
Replaced the computer. Still the exact same thing . Come on, any ideas??
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Jun 8, 2003 | 08:09 PM
  #5  
Well i had a nice conversation with my self here, lol. Anyway, i got it figured out. Turned out to be a crappy connection at the alternator and at a splice i made to wire my msd box to the positive power cable. All the stores were closed by the time i realised this, so i used some electrical tape to ghetto rig it for now. Tomorrow i'm gonna return the computer and get a 3 way crimp connector.
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Jun 9, 2003 | 10:07 PM
  #6  
well i had a similar problem on my last camaro. It would surge as it was taking off and it had no power at all. (not that it had a alot to begin with). Anyways the problem with mine was a bad fuel pump but i guess thats not the case with urs. Good job figuring out the problem.
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