Fuel Pump issue

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Old Oct 9, 2019 | 03:03 AM
  #1  
Thefireball's Avatar
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Exclamation Fuel Pump issue

Alright, to start, I checked the forums, but was only led to a forum on the Fuel Pump Relay (https://acurazine.com/forums/2g-cl-p...roblem-495108/)
It is not the Fuel Pump Relay. This is going to be a bit to type, as well as read, so let's get to it.

Back in April (or around that time), I took apart my fuse box for a stupid reason that I won't get into. Put it back together, everything was fine for a week, until my car stalled at a red light and wouldn't start. I had it towed to the mechanics the next day, to find that my fuel pump was bad, and they replaced it. However, they had to jump the fuse with another fuse. This is where I believe the issue may have began, or it has nothing to do with it. I don't know. I replaced the fusebox with a junkyard one, and all has been fine.. until a month and a half ago.
My car wouldn't start randomly. Wasn't that it was hot, or it was raining, it just wouldn't start randomly. I could tell it wasn't getting fuel. It would crank, but never start. So I would go to the trunk, look at the fuel pump, unplug the Fuel Pump plug, and replug it, and it would work fine again. This worked for a few times, and then wouldn't when I got stuck in a Fedex parking lot.
I assumed my new Fuel Pump from April was going bad already, and already had some junk yard Fuel Pumps on hand to replace it just in case. So right there, in the parking lot, I swapped out the pumps, and wallah, my car worked fine.. until the next day. Same thing, so I took out the Fuel Pump assembly, unplugged everything (leaving the fuel pump in it), plugged everything back in, reinstalled it, and my car worked fine for weeks. Until recently.
Drove my car Sunday night. Monday afternoon comes, go to start it, nothing. Later that night, after work, I take apart the fuel pump again, this time, installing a third fuel pump (from the junkyard), with nothing happening. I check the fuel pump fuse, perfect, but replaced it anyways. Nothing. I reset the ECU, hoping that would fix something. Nothing. I removed the fuel line from the fuel rail, cranked the car. No gasoline leaked out at all.

Now, I don't have a voltage meter, nor do I know how to use one, but I don't believe the fuel pump is getting power, but I don't know why that would be the case. I already reflowed the solder on the Fuel Pump Relay, to no avail. I even heard the two clicks it made when turning the key in the ignition. I even tried using the valet key to see if it was my key, no go. I have no clue as to what the issue could be. If anyone has any suggestions as to what to check out next, that'd be great. I'll be going to the Junkyard this weekend to pull some more fuel pumps to really make sure i'm not having some bad luck with some rather bad pumps, and if so, i'll just buy a good one and hope for the best.
So, any ideas?
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Old Oct 9, 2019 | 09:01 AM
  #2  
zeta's Avatar
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You probably already did this; however, check your left side wire harness fuel pump ground #16 and the body ground #29. Check the pins in the fuel pump connector to see if any are bent or damaged. Otherwise, .

See attachment.
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Old Oct 10, 2019 | 12:01 AM
  #3  
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Originally Posted by zeta
You probably already did this; however, check your left side wire harness fuel pump ground #16 and the body ground #29. Check the pins in the fuel pump connector to see if any are bent or damaged. Otherwise, .

See attachment.
I appreciate your input, however..
I decided to have one more go at it, and reinstalled the original fuel pump that the mechanics installed, and what do you know, the car started.. and stalled after a minute. It takes me beating the area around where the fuel pump is, and it would work again, for a short time. Short time being that it does three times driving around the neighborhood of my apartments.
Needless to say, the issue is obviously the fuel pump, but what I don't understand is why the junkyard fuel pump that was installed worked, then the next day, it didn't, and after reassembling it, it worked for a month, and now doesn't.
I'm just going to buy a good fuel pump and hope for the best, I suppose.
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