Toyota 23221-0A030 Fuel Pump

You can Select Your Vehicle to check if 23221-0A030 fits your vehicle.

If there is no response from the fuel pump, you should check the fuel pump's electrical circuit.

Remove the plastic support on the bottom of the pump by releasing the clips with a screwdriver, then pull off the rubber isolator, the fuel sock filter clip, and the electrical connector.

Possible causes include a clogged fuel filter, restricted fuel line, leaking fuel injectors, or defective fuel pressure regulator or fuel pump.

After testing, you should relieve the fuel pressure and remove the fuel pressure gauge.

Replace it.

Check that there is enough fuel in the tank and verify that the fuel pump runs by listening for a whirring noise when the ignition switch is turned on. If there is no response from the fuel pump, check the electrical circuit. To perform a fuel pressure check, relieve the fuel system pressure and remove the fuel line. Turn on the ignition and check the pressure on the gauge. If the pressure is not within specifications, check the fuel pressure regulator or other potential causes. After five minutes, the pressure should not drop below the minimum hold pressure. If it does, there may be a leaking fuel injector or a faulty fuel pump or pressure regulator. If the fuel pump does not turn on, check the EFI fuse and the wiring from the fuse/relay box to the fuel pump.

To remove the fuel pump/fuel level sending unit assembly from a vehicle, first, relieve the fuel system pressure and disconnect the cable from the negative terminal of the battery. Then, remove the rear seat from inside the passenger compartment and the fuel pump/sending unit floor service hole cover. Disconnect the electrical connector and fuel line, and remove the retaining bolts before carefully withdrawing the assembly from the fuel tank. Disconnect the electrical connector from the fuel pump and remove the pump from the assembly, either by sliding the hose clamp up the hose or by removing the fuel-sending unit and fuel filler and prying up the housing snap-retainers in sequence. Finally, remove the clip securing the inlet strainer to the pump and inspect it for contamination before replacing it if necessary. To install the fuel pump/sending unit assembly, reassemble it in the reverse order of disassembly and connect the fuel line and electrical connector before completing the remainder of the installation in reverse.

To remove the plastic support on the bottom of the pump, you can release the clips with a screwdriver.