When I Spray Starting Fuld N My Car It Will Run But When I Stop The Dies

1. Check the Fuel Pump

The fuel pump is responsible for delivering fuel from the tank to the engine. If it's not working, the engine won't get the fuel it needs.

Listen for the Fuel Pump: Turn the key to the "ON" position (do not start the car) and listen for a humming sound from the fuel pump. This sound typically lasts a few seconds. If you don't hear anything, the fuel pump may be faulty.

Fuel Pump Relay and Fuse: Check the fuel pump relay and fuse. These are usually located in the fuse box under the hood. Replace any blown fuses or faulty relays.

2. Check the Fuel Filter

A clogged fuel filter can restrict fuel flow to the engine.

Locate and Replace: The fuel filter on the 2006 Nissan Murano is typically located under the car along the frame rail. If it's clogged, replacing it can restore proper fuel flow.

3. Check the Fuel Pressure

Proper fuel pressure is essential for the engine to run correctly.

Fuel Pressure Test: Use a fuel pressure gauge to check the pressure at the fuel rail. Compare the reading to the manufacturer's specifications. If the pressure is too low, it could indicate a problem with the fuel pump, filter, or pressure regulator.

4. Check for Fuel Injector Issues

The fuel injectors need to spray fuel into the combustion chambers. If they're not working, the engine won't run.

Listen for Injector Clicking: With the engine cranking, use a mechanic's stethoscope or a long screwdriver to listen for a clicking sound from each injector. No sound could mean the injectors are not receiving power or are clogged.

Injector Cleaning: If the injectors are clogged, you may need to clean them or use a fuel injector cleaner additive.

5. Check the Mass Air Flow (MAF) Sensor

The MAF sensor measures the amount of air entering the engine and helps regulate the fuel mixture.

Clean the MAF Sensor: Sometimes, a dirty MAF sensor can cause fuel delivery issues. Carefully clean it with MAF sensor cleaner.

Test the MAF Sensor: If cleaning doesn't help, you may need to test or replace the sensor.

6. Check for Vacuum Leaks

Vacuum leaks can disrupt the air/fuel mixture, causing the engine to stall.

Inspect Hoses and Connections: Look for any cracked, broken, or disconnected vacuum hoses.

7. Check the Engine Control Unit (ECU)

The ECU controls the fuel injectors and other critical systems. If it has a fault, it can cause fuel delivery issues.

Scan for Trouble Codes: Use an OBD-II scanner to check for any stored trouble codes that might indicate a problem with the ECU or other sensors.

8. Inspect the Ignition System

Although less likely, issues with the ignition system (spark plugs, ignition coils) can sometimes cause symptoms similar to fuel delivery problems.

Check Spark Plugs: Remove and inspect the spark plugs. If they're worn out or fouled, replace them.

Test Ignition Coils: Ensure the ignition coils are functioning properly.