Not getting fuel to motor--I have checked the fuel pump, fuel control regulator. No bad relays found during code check. What else can I check?

If your fuel pump is working but not delivering fuel to the engine, it could be due to a few different reasons. Here are some possible causes and troubleshooting steps to take:

1. Clogged fuel filter: A clogged fuel filter can restrict the flow of fuel to the engine. Try replacing the fuel filter and see if that solves the problem.
2. Fuel pressure regulator malfunction: The fuel pressure regulator regulates the pressure of fuel delivered to the engine. If it's malfunctioning, it may not be delivering enough fuel to the engine. A mechanic can check the fuel pressure regulator and replace it if necessary.
3. Faulty fuel pump relay: The fuel pump relay is responsible for turning on the fuel pump when the engine starts. If the relay is faulty, it may not be sending power to the fuel pump, even though the pump is working. You can check the relay by swapping it with a known good relay of the same type.
4. Clogged fuel lines: Fuel lines can become clogged with dirt or debris, which can restrict the flow of fuel to the engine. A mechanic can inspect the fuel lines and clean or replace them if necessary.
5. Bad fuel pump: Even though the fuel pump is running, it may not be delivering enough fuel to the engine due to a malfunction. A mechanic can test the fuel pump to determine if it's functioning properly and replace it if necessary.

In any case, if you're having trouble getting fuel to the engine, it's best to have a qualified mechanic diagnose and fix the problem.

code p 0300 is random misfires and is generally related to fuel and injector problems rather that plugs , coils and wires
Check for fault codes that relate to the EVAP for non venting of the tank, which causes a vacuum in the tank and the fuel pump cannot supply enough fuel to maintain pressure to the injectors
check for a problem fuel pressure regulator that is not keeping the pump running
check for pump relay problem
check for ECM not switching on the pump relay
check for bad grounds on relay , pump pressure regulator

code p 0230 refers to fuel pump relay---circuit malfunction===causes --wiring---fuel pump relay-- ECM
check wiring for bad connections
replace the ECM with a known good unit as it may be breaking down electronically in the circuit that controls the pump relay
Check the pressure regulator as well as it reports to the ECM to shut off the pump relay when the fuel pressure is reached and not being used

first check the fuel filter. check before and after the filter if you get fuel before it then check after it, no fuel before go back to the pump. if you get fuel after then go to the fuel rail on the motor. open the line before the pressure regulator, if you get fuel then check after the regulator, if none after then the regulator is bad, if the regulator is vacuum assisted check your vacuum.

There is a fuel pressure regulator on the fuel rail. It could be bad. To check this pull off the vacuum line and turn the ignition on without trying to start the car. If fuel comes out of the vacuum hose fitting the fuel pressure regulator is bad. Another possibility is a bad fuel pump. Check your fuel preasure. If low or non exisitant replace fuel pump only after checking fuel pressure regulator. Good luck.

when you turn the key in 'on' position, do you hear the fuel pump hum? check under hood in black box,,fuses,,and relays. for bad fuse or fuel pump relay bad. try bumping fuel tank with something hard to see if fuel pump will engauge with key on. maybe bad pump. have you had off road? look for pulled plug from fuel pump underneath near gas tank.have you bent or damaged your igbition key somehow? the key sends a signal to your cars computer to engauge the pump and crankshaft sensor.but if you do have fire,,,it's a fuel problem, so you are on the right track. if nothing i've said helps, check for a bad fuel pressure regulator.hope this helps and thank you for choosing fixya.com!!

Make sure you check the 3" intake hose from the air box to the intake manifold. May be cracked.

16795/P0411/001041


if (window.showTocToggle) { var tocShowText = "show"; var tocHideText = "hide"; showTocToggle(); } 16795/P0411/001041 - Secondary Air Injection System: Incorrect Flow Detected Possible Symptoms

• Malfunction Indicator Light (MIL) ON

Possible Causes

• Fuel Pump Relay (J17) faulty
• Hoses/Pipes to/between Components faulty/clogged
• Secondary Air Injection Pump (V101) faulty
• Secondary Air Injection Pump Relay (J299) faulty
• Secondary Air Injection Solenoid Valve (N112) faulty

Possible Solutions

• Check Fuel Pump Relay (J17)
• Check Hoses/Pipes to/between Components
  • Check Secondary Air Injection Hoses/Pipes for Carbonization
• Check Secondary Air Injection Pump (V101)
• Check Secondary Air Injection Pump Relay (J299)
• Check Secondary Air Injection Solenoid Valve (N112)

there is a reset switch in the trunk on the right side under the carpet or in the trunk on the back wall by the tail lights i had same problem found it and it was the fix i have the same car 89 5.0 trunk style hope this helps

Check for a burned fusible link under the hood. If you have power at the fuel pump relay, you could have a bad ignition switch or bad oil pressure switch...accordianman