priming new fuel pump to injectors Options

[surfdogskier]

So I just installed a new electronic fuel pump. All lines got drained when I took the old one off. How do you go about primeing those lines with fuel. I can crank it with starting fluid but there is no gas getting to the injectors and it will eventually shut down. Is there a trick to it?....Thanks in advance.

[napasteve]

Do you know that the fuel pump is pumping fuel? I had a situation where the hose under the fuel tank was kinked so that the fuel pump could not get any gas.

[BeatNavy]

I've never heard of having to prime the lines or injectors. I think if you're not getting fuel at the injectors I'd look to see if you've hooked up your pump correctly on both the electrical connections and the pump outlets.

[TheCabinetmaker]

And just what is an electronic fuel pump? This is a new term for me.

[surfdogskier]

And just what is an electronic fuel pump? This is a new term for me.

I originally ordered one that didn't have positive and negative connects. It was passive so to say. I found out this is not what I needed.

[surfdogskier]

Do you know that the fuel pump is pumping fuel? I had a situation where the hose under the fuel tank was kinked so that the fuel pump could not get any gas.

When I disconnected the original fuel pump and filter, it drained my tank pretty much. I don't see there being any kinks. It flowed out pretty steady.

I didn't know if there would be air pockets that didn't allow gas to flow or not. Didn't know if I should disconnect a line going to the engine to release air or generate fuel going to the engine.

[TheCabinetmaker]

And just what is an electronic fuel pump? This is a new term for me.

I originally ordered one that didn't have positive and negative connects. It was passive so to say. I found out this is not what I needed.

This thread is making me dumber and dumber. Wtf is a fuel pump with no positive and negative connects? Someone help me out.

[poorsche914]

Where in east TN are you located? Perhaps a local could help troubleshoot.

(IMG:style_emoticons/default/driving.gif)

[jcd914]

If all you did was replace the pump and filter there should be no need to prime the pump/system. Cycle the key on and off several times so the pump runs and try to start it. If there is air in the system the engine might stumble or die at idle but that should clear up shortly.

If you have other issues you need to recheck your work.

Jim

[Jeff Hail]

And just what is an electronic fuel pump? This is a new term for me.

I originally ordered one that didn't have positive and negative connects. It was passive so to say. I found out this is not what I needed.

This thread is making me dumber and dumber. Wtf is a fuel pump with no positive and negative connects? Someone help me out.

A fuel filter?

I bet there are at least two 914s out there with two fuel filters that aren't getting fuel at the injectors.

Those wireless passive fuel pumps can be problematic.

I saw one once in the movie "Men who stare at goats".

[surfdogskier]

If all you did was replace the pump and filter there should be no need to prime the pump/system. Cycle the key on and off several times so the pump runs and try to start it. If there is air in the system the engine might stumble or die at idle but that should clear up shortly.

If you have other issues you need to recheck your work.

Jim

I will do that. I didn't know if there is air lock in the lines and I needed to take off a line close to the fuel injection input and try cycling the pump until gas comes out.

[surfdogskier]

And just what is an electronic fuel pump? This is a new term for me.

I originally ordered one that didn't have positive and negative connects. It was passive so to say. I found out this is not what I needed.

This thread is making me dumber and dumber. Wtf is a fuel pump with no positive and negative connects? Someone help me out.

Sorry, I was incorrect on my information. If was a electric fuel pump I ordered for PP but it was the wrong one. Sorry to get everyone confused with my post.

[McMark]

If you pulled the tank, then the lines may be kinked. Use the access hole above the steering rack to check.

You also may have mixed up the fuel lines. Here's the flow path of the fuel:

1. Tank to pump.
2. Pump to passenger side fuel rail.
3. PS rail to DS rail.
4. DS rail to pressure regulator.
5. Regulator to tank.

I'm assuming you've installed a fuel pump with one inlet/one outlet? Or was it the three port pump?

[surfdogskier]

If you pulled the tank, then the lines may be kinked. Use the access hole above the steering rack to check.

You also may have mixed up the fuel lines. Here's the flow path of the fuel:

1. Tank to pump.
2. Pump to passenger side fuel rail.
3. PS rail to DS rail.
4. DS rail to pressure regulator.
5. Regulator to tank.

I'm assuming you've installed a fuel pump with one inlet/one outlet? Or was it the three port pump?

I never pulled the tank to place it up front. To much work. I installed it on the firewall underneath the car. I was very careful to get the lines correct going from the 3 port to the 2 port fuel pump. One thing I did want to ask. My pump sets a little higher than my filter. So the flow goes in a diagonal from the tank line to the filter then to the pump. Does the pump use sucsion to pull gas from the tank to the filter and then to the pump and then onward. Because if it doesn't, then that could very well be my problem not getting gas. Here is a picture.

[PlantMan]

I did the same thing recently and mounted my pump to the firewall.
In my haste I hooked-up the pump incorrectly so when I cycled the pump through the ignition it was actually running backwards. Obviously running backward will not suck any fuel. Once I corrected the wiring and turned the ignition the pump immediately sucked fuel and pressurized the system. The car started on the next turn.

Investing in a pressure gauge to add to the fuel rail is worth the money to trouble shoot the system too.

Make sure your pump is hooked-up correctly.....they will run backwards too....

[surfdogskier]

I did the same thing recently and mounted my pump to the firewall.
In my haste I hooked-up the pump incorrectly so when I cycled the pump through the ignition it was actually running backwards. Obviously running backward will not suck any fuel. Once I corrected the wiring and turned the ignition the pump immediately sucked fuel and pressurized the system. The car started on the next turn.

Investing in a pressure gauge to add to the fuel rail is worth the money to trouble shoot the system too.

Make sure your pump is hooked-up correctly.....they will run backwards too....

I will confirm that today.

Thank all of you for all the advice. That's what makes this forum the best out there....... (IMG:style_emoticons/default/beerchug.gif)

[surfdogskier]

I ended up switching the leads on the pump and now it is pumping fuel up the lines. Just not getting it to start yet. Tried cycling the switch like was mentioned earlier but no go yet. Had some gas lines that were leaking so I replaced those. I do see my injectors and connections are filthy. Any threads on cleaning these someone can point me too?