How do i check to see if fuel is getting to the injectors on a 2006 chrysler 300 5.7L

It has an electric fuel pump inside the fuel tank, you make sure it works.

The fuel pump normally only comes on for a second unless the car starts and is running, if the car starts and the pump only runs for a few seconds, then there is a problem with the engine signal to the ecm, ie its not telling the computer that it is running. I dont believe there is a schrader valve on those fuel lines, if there is, chrysler probably put it underneath the intake plenum. If the car will not start, but you hear the fuel pump kick on and off, it could have a clogged fuel filter, or injectors, or even bad connections going to the injectors. They normally are all switched via the ground wire for each injector, so if they are not cycling it could be a bad ecm, or bad connection somewhere in the wiring harness

you will get this code when the incompletely burned fuel in the cat has built up to a certain level and cat can no longer absorb more. The cause of incompletely burned fuel in the cat can be due to many reasons:

1. sparkplugs not firing correctly (wrong gap or fouled)(problem with ingntion components(wiring to spark plugs to high resistance)
2. fuel injectors are fouled.
3. bad fuel, incorrect fuel (regular vs premium-see user manual)

You will have to verify plugs are good, plug wires are good, injectors are clean, fuel is good.

once you get these things line out the light will eventually go out.

No reset switch. Hook up a fuel pressure gauge an check pressure . Check electrical circuit , voltage drop testing . are the fuel injectors firing ? Anti-theft system light lit ? anti-theft system problems on some vehicles will disable fuel injectors .

Testing Electric Fuel Pump Problems with Voltage Drop Test

there is one injector for each cylinder. 6 total.

CLEAN FUEL INJECTORS SEE IF THAT HELPS.IF NOT COULD HAVE BAD FUEL INJECTOR OR FUEL INJECTOR ELECTRICAL CONNECTOR COULD HAVE A SHORT.DO A COMPRESSION CHECK ON THAT CYLINER COULD ALSO HAVE LOW COMPRESSION DUE TO BAD VALVES OR INTAKE MANIFOLD LEAK AT CYLINDER NUMBER 4.

POOR FUEL CONSUMPTION CAUSED BY LOW TIRE PRESSURE.TRANSMISSION SLIPPING DUE TO FAULTY TORQUE CONVERTER OR SLIPPING CLUTCH MANUAL TRANSMISSION.CLOGGED AIR FILTER, DIRTY FUEL INJECTORS LEAKING FUEL INJECTORS. HIGH SPEED DRIVING.CITY DRIVING LOT OF SHORT STOPS. RUNNING CAR AIR CONDITIONER ALOT.DRAGGING BRAKES MEANING PARKING BRAKE NOT ADJUSTED CORRECTLY.

Is your check engine light on on the dash yellow light? If it is it very well could be your 02 sensor and they will let your car drink more gas than it should , The sensor helps the pc in your vehecle dicide how to mix air and gas to be sprayed into injectors. this is preset from auto maker and whatever you sale stick on window says you should get in mileage is exactly what you should get.

GAS MILEAGE IS MORE IN THE CITY.WHEN YOU STOP AND GO.THEN ACCELERATE THATS WHEN YOU BURN GAS.TAKES FUEL TO PUT VECHICLE IN MOTION.TRY CHANGING AIR FILTER.CHECK TIRES AIR PRESSURE.CLEAN FUEL INJECTORS.AND CHECK UNDER THE VECHICLE AND UNDER HOOD FOR GAS LEAKS.

Try cleaning out your intake (get some stp throttle body cleaner) try running some fuel cleaner through you gas tank, check you air filter. maybe you could replace your spark plugs and wires. these are just a couple of things I could think of that could cause it.