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You didn't say whether the injection pump is purely mechanical or whether there is electronic control or merely an electric fuel cut-off solenoid?
You also didn't tell us whether it is an in-line pump or a distributor type and if the latter is it hydraulically governed or mechanically governed?
Hydraulically governed DPA pumps are very difficult to bleed though during the bleeding process there is usually spits and spots of fuel through the injector lines.
It is unlikely a new or reconditioned pump would be so faulty as to not pump at all so the fault is likely to be with the fuel cut off solenoid. I suggest you check the supply and then check the solenoid operation.
Hook a test light to one of the injector plugs and crank the engine. The light should flash. No flash. Not good. Your injectors are grounded by the ECM. Each one has it's own driver in the ECM. You may want to look at the cam sensor(your's is most likely in the distributor) first. After that replace the ECM. If they do flash, then look at the fuel pump. You can check fuel pressure, but it is a pain and you need special hook ups to the fuel line to do it. A quick test is to get fast start and spray it in the throttle body. If it starts and runs for a second or two. Replace the fuel pump.
I would make sure your fuel pump is fully operational and is pushing the recommended pressure of 35 psi. You will need a fuel pump pressure gauge (tester). I would start here and them move forward.
say exactly were this spitting happens. are you saying its leakin or did you look then spark plug hole to see that. please do say. from the fuel injection< ?
If the fuel rail is not seated down where it was this will happen. I put some lubricant on the o-rings to make sure the injectors fit in the rail all the way, try twisting the injectors also while the rail is pushed down. Also you might need to change the o-rings on the top of the injectors. I hope this helped you.
Yes, if everything is still connected properly, except that the injectors are no longer seated int he valve head, then you should see little spurts of gas coming from them when the engine turns over.
Be aware though, that it might not be your fuel injectors that are the problem. You need to finish checking the rest of the car before making that assumption.
Once you know the injectors aren't firing, you need to check the fuel filter and the fuel pump to make sure the gas is getting from the tank to the injectors.
You should have a fuel filter located on the passenger side of your car near the gas tank. Follow the gas lines under the car to find it. It is good to change it anyways, but you can check to see if gas is coming from the tank to the filter by removing the rear line
** BE CAREFUL, Gasoline is EXTREMELY irritating to the eyes and skin, and it WILL come out when you remove the line from the filter***
If it is coming from the tank to the filter you don't have to check your pump. Then replace the rear gas line, and remove the front gas line going to the engine and make sure the filter spits out gas while the engine turns over as well.
If there is no gas getting to the fuel filter, you will need to check your fuel pump, which should be located inside the gas tank. You can check it by getting under the car while you have a friend turn the key to the "on" position, but not starting the car. Do this 4 to 6 times to make sure you hear a little "Click, woosh" type sound that lets you know the pump is triggering.
If you have gas coming from the tank, through the filter and it is still not coming through the injectors, then you will need to rebuild your fuel injectors.
This is not hard to do, and consists mostly of changing the little gaskets in the injectors. But be aware that there are lots of small parts and the job cannot be rushed. Also be aware that lumina fuel injection systems are very sensitive. Make sure to disconnect your battery cables before removing the injectors from the system.
I would replace the injector itself. You can get a free full online repair manual with everything you could need if you register for free at autozone.com
You have to make sure all of the air is bled out of the fuel line. start with top of fuel filter then injector pump. If it still won't run then loosen an injector pipe until it stops spitting air. It is possible that the original reason that it sputtered and stopped could be air getting sucked into the fuel line...hope this helps.
take line off before filter see if gas is coming out at time of key engagement, if not its fuel pump.if yes then reconect and disconnect on outlet side of fuel filter this will tell you if filter is clogged
At the rear of the injection pump there are four lines, each goes to an injector. loosen the flare nut at just one injector. crank the engine over until you see fuel spitting out. Close the fuel line,vehicle should be running. If not then its something else check the fuel filter, fuel shut-off, and check for any fuel leaks.
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