Fuel Pump wont stay on

[iguanahotsauce]

So I have been having problems with my talon lately. The check engine light wasn't turning on anymore on I was going through a bunch of different possibilities and it turns out the bulb is just dead. I pulled the codes and found out I was getting a fuel pump code. I just replaced the fuel pump and filter about 3 months ago with a new one because the car had been sitting for 6 years. So anyways I was checking out the fuel pump and realized I don't hear it prime. The car will start and then die a couple seconds later which leads me to think the fuel pump is shutting off. I pulled the fuel line that connects to the pump and cranked the car for a second and fuel came out. So what I am trying to figure out is could this fuel pump have something wrong with it or is my fpr bad. I think I might just take this pump out and get it replaced since it's still under warrenty

 

[ilco187]

Check the fpr by pulling the vacuum line off (the small hose) while its running and see if fuel comes out and if it does its bad.

 

[DSMTyson]

That^

 

[iguanahotsauce]

Ok I will check it out tomorrow and see if it's bad. So i pull off the small hose that goes to the solenoid not the larger one that's about 1/4"?

 

[Colt4G63 also]

It should not prime. The pump is only activated when the CAS is turning.

If fuel comes out the 1/4" return line, then you probably have adequate fuel pressure. If it comes out the small vaccum hose, then your FPR is bad and you are having flooding, or at least a rich condition.

 

[iguanahotsauce]

Could a bad FRP cause the issue that I am having? I know that when the car did run I was having problems of running rich and only getting about 15mpg on a completely stock 1g.

 

[rlacasse1]

Yes, a bad FPR could cause to high of fuel pressure or not enough fuel pressure, which would result in it dying. But since you said it's getting shit for mileage I would assume it's running way rich. I would check out that FPR.

 

[iguanahotsauce]

Alright I will take a look in the morning and see if there is fuel in the vacuum hose. Where would be a good place to buy an afpr if I were to get one?

So I checked the fpr today and the vacuum hose didn't smell like gas and there wasn't any gas in the hose. I wasnt able to take it off when it was running because I don't have enough time before the car dies. Would it be fine if I left the vacuum hos off and then started the car? Also I was wondering if I should go pick one up from the junkyard or if I should order one off eBay. I can get one from the junkyard for $10, is there a good afar that I can get for cheap? I saw some on eBay for $22 but I wasn't sure which brands are good and which are not

EDIT:
So I pulled the vacuum line off the FTP and started the car and there wasn't any gas coming out of it so I don't think it's bad. What else could be causing my problem?

 

[iguanahotsauce]

Does anyone have any ideas? I'm stumped and really want to get this fixed Is it possible that my fuel filter is clogged again? I just changed it in the middle of December along with the fuel pump. I just replaced the fuel pump again today because it was under warranty and my computer was telling me there was a fuel pump problem. I reset the ECU and now there are no codes. I checked the FPR and there wasn't any gas coming out of the vacuum hose but I was thinking about replacing it anyways because one from the junkyard is only $10. If I can find a good AFPR that's not too expensive I will get that instead.

 

[ilco187]

Could be the MPI relay. http://0.tqn.com/d/autorepair/1/0/e/Q/ply_mpi_relay_429c.gif I dont know how to check it but im sure there are some threads on here about it. are you sure its the fuel system though have you checked all vacuum lines to make sure nothings missing or the egr could be sticking open.

 

[iguanahotsauce]

No I'm not sure it's the fuel system but that's just what it seems like. I know nothing is missing because my talon ran for about a month, then after I reset my ECU it stopped running. I don't know if it was just coincidence that it started happening when I reset the ECU or if it is a problem with the ECU. I will read up on how to check the MPI relay tonight and check that tomorrow. How do I tell if the egr is sticking open?

I checked the MPI relay today and it tested fine. I am stumped I found out that it is fuel related because I was pinching the fuel line after the filter and had someone start the car and I could feel it get fuel pressure for a couple seconds then loose fuel pressure and die. I really want to get my talon up and running again, it has been down for over a month now =(