I put my car back together and i am not getting gas, and i want to check the wires running back to the fuel pump,Anyone know if they run on the outside of car or the inside of the car.

 

They are inside the car till right before the pump, then go threw the floor. You should check power at the pump connector where it plugs into the top of the sending unit in the tank. Make sure the ground is good too.

Have you tried sending power to the pump from the fues box/aldl port first. A lot easier than crawling under the car to probe wires.

 

I have not tried that yet, I also wouldnt know how to do that either from the aldl port. Would you be able to tell me which port it would be on the aldl plug?

 

What year? I have personally never done it at the ALDL, I always use the fuse box.

 

its a 91 firebird i hope to test all the fuses and a relay if there is one and check the wires coming out the body, the car was sitting for 4 years

 

Does the fuel pump prime? If not, then you have a bad fuel pump relay or a bad ECM.
Did you check the fuse tucked in the fenderwell behind the battery?

Can also remove the oil pressure sending unit and test for voltage on the orange wire (or maybe the red wire). One of them comes FROM that fuse at the battery (and should have voltage) and the other goes TO the fuel pump - the oil pressure sending unit senses oil pressure and thus sends juice to the fuel pump through these wires.

 

Thanks for all the help the guys the pump is trashed!!! Time to have fun replacing it

 

You forgot one possible outcome...

 

I checked the relay and it turns on, im getting power all the way to the plug that comes out of the firewall in the back of the car. Since im removing the pump i think i might put in a stronger pump. Any ideas on a pump i should get?

 

If your dropping the tank, don't settle for junk. No need to pay stealershipprices, but at least get one from CarQuest or Napa. I replaced mine 3 years ago with a CarQuest part (which is AC/Delco) and haven't had any problems.

 

I am going to pick up the Delphi pump over at advance auto. Thank you for all the help guys again.

 

You can use about any pump that is externally the same size or close to it. The regulator will not build more pressure than you need. I was running a 5.0 mustang walbro 190lph in my truck when I was TBI, it puts out 190lph at 45psi so at 18 psi I imagine it was putting out close to 250lph.

 

I replaced the fuel pump and now i have a bad injector, figures since the car has been sitting for years. Thank you for the help Drumer!!! Im pickign up 350 tbi for 25 bucks today so i hope the car will start after that for the first time in years!!