98-Mitsubhi Eclipse - 2.4 SOHC fuel pump issues

If the fuel pump on your 2017 Chevy Express isn't getting any voltage, but the two blue wires are getting 5 volts, there could be a few potential causes for this issue.

1. Fuel Pump Relay: The fuel pump relay could be faulty or not functioning properly. Check the relay and replace it if needed.
2. Wiring Issues: There could be a wiring problem between the relay and the fuel pump. Check for any broken wires or loose connections and repair if needed.
3. Fuel Pump Control Module: The fuel pump control module may be faulty and needs to be replaced.
4. Fuel Pump: The fuel pump itself may be faulty and needs to be replaced.

It's always best to consult with a certified mechanic to diagnose and repair this issue, as they will be able to accurately diagnose the problem based on the specific symptoms and conditions of your vehicle.

There should be battery voltage at the fuel pump. Check the battery voltage at the fuel pump relay to be sure that there is power coming from the battery. Check voltage at fuel pump fuse.

If it's a fuel issue, did you check proper fuel pressure? Engine cranking is the fuel pump running? Did you check voltage and ground for the fuel pump. I've seen fuel pumps that would run, but, wouldn't make proper fuel pressure.
Engine cranking, you have spark at the plugs and fuel injector pulse?

You might want to double check that connector to the fuel pump. These cars are known for melting the inside of the connector and causing a poor connection. You'll need to remove the pump also to check the inside of the pump connector. Look for a dark brown discoloration. If you do have this discoloration, replace the pump module and the electrical connector. You may want to test the voltage to the connector to make sure that you have 12 volts going to the pump

You have an electrical short to ground on that circuit , do you know how to test automotive electrical circuits using a DVOM - digital volt ohm meter ? How to read a wiring diagram , so you know which circuits to test ?
What fuse ? number an amp

I have a 98 Land rover Discovery and my Fuel Pump relay "Module" is under the hood and looks like...

pump voltage should be 12 volts, i think you may have a bad gound going to the pump tank unit,

The injectors may be showing bad because of the stuff that you put into the fuel tank. It will work itself through. If the system is showing lean fuel, replace the O2 sensor if it has over 100,000 miles on it. It directly controls the fuel/air mixture. Replace the fuel filter, don't try to clean it. If things still aren't running right, check the fuel pressure on the fuel rail located over the injectors at the the test port (which looks like a tire valve). The pressure should read around 40 PSI with the engine running. Any reading much lower suggests a worn fuel pump or a defective fuel pressure regulator. You can rent a kit that checks the pressure safely.

The head lights killing the car is a charging problem.Put a volt meter on the car,and check the voltage while the car is running.It should read about 13.65 to 14.25 volts.If it is less than this ,the alternator is not putting out enough voltage,or none at all.If there is 12 volts or a little more when you check it(while the car is running)then the alternator is not charging at all.12 volts is plain ole battery voltage.Check for a alternator fuse that is blown,or any cable or wires loose or come apart.If there is nothing found,then replace the alternator.Be sure the battery cables(cable ends) are clean and shining.Not dull in color,or grey,to black.Also the post on the battery.Put them back on tight.If this helped,please let us know,thank you.

should have 12 volts at pump during engine cranking. with key in "on" position, the fuel pump only gets voltage for 2 seconds if engine is not running. Read voltage during cranking. Check fuel pump relay in battery jucntion box under hood.