Fuel Pump Assemblies

• 

EFI fuel pump assembliesis a combination of a electric fuel pump, a fuel gauge sending unit, a pressure regulator valve, a fuel tank pressure sensor. It is an important part of the electronic fuel injection system of automotive fuel system parts. Fuel pump and assembly's basic function is to provide fuel with certain pressure to the engine fuel injection system. Therefore, the quality of the EFI fuel pump assembly will directly affect the working condition of the fuel injection system.

Fuel Pump Module AssemblyFunctions

The function of the automotive fuel pump is to suck out the fuel from the fuel tank, pressurize it and deliver it to the fuel supply pipe, and cooperate with the fuel pressure regulator to establish a certain fuel pressure. If it is broken, it will cause the fuel pump module assembly to collapse and the vehicle cannot be started; the fuel supply pressure is reduced, and there is no sound of the fuel pump running; the acceleration is weak, and there will be abnormal noises when driving; the engine fault light is on, the engine vibrates abnormally; it is difficult to start when starting, it takes a long time to turn on the vehicle.

Fuel pump module assembly failure can be determined by an on-board inspection.

Connect the fuel pump test terminal on the diagnostic base to the 12V power supply with a special wire;

Turn the ignition switch to the "ON" position, but do not start the engine;

Unscrew the fuel tank cap, you can hear the sound of the fuel pump working, or you should feel the pressure when you squeeze the fuel hose with your hand;

If the working sound of the fuel pump cannot be heard or there is no pressure in the fuel inlet pipe, the fuel pump should be repaired or replaced;

If the fuel pump fails to work, and the above inspections are normal, check whether the fuel pump circuit wires, relays, and fuses of the fusible link are open.

Note when disassembling the fuel pump, please release the fuel system pressure and turn off the electrical equipment. After removing the fuel pump, measure the resistance between the two terminals of the fuel pump, it should be 2~3Ω. Use the battery to directly energize the fuel pump, and you should hear the sound of the high-speed rotation of the fuel pump motor. Note: the energization time should not be too long.

How Long Does A Fuel Pump Assembly Last?

Around 100,000 miles. Fuel pumps are meant to last around 100,000 miles, but most people never have to replace their fuel pumps. They are typically built to last since they are positioned in a hard-to-access place within your fuel tank

If you need any kinds of car spares and parts, please contact us, as one of the most professional car spares suppliers, MAPMS is willing to offer you high quality products.

Другие товары поставщика

	Auto Car Thermal Expansion Valves	The auto ac expansion valve of the automotive air conditioner is installed at the entrance of the evaporator, and has two main functions. Throttle...
	Car Knock Sensors	The car aftermarket knock sensoris an AC signal generator, which can detect the speed and position of the rotating shaft, vibration or mechanical p...
	Fuel Pressure Sensors	The fuel vapor vent pressure sensoris used to control the fuel pressure in the fuel circuit, maintain a constant fuel supply pressure to the inject...
	Throttle Position Sensors	The tps automotiveis also known as throttle opening sensor or throttle switch. In order to make the fuel injection meet the requirements of differe...
	Headlight Bulbs	HID Car Headlight Bulbs also named Xenon Bulbs High Brightness. 35W xenon lamp can produce 3200 lumens of bright light. Wide color temperature ra...

Похожие товары

	CSD16301Q2 TRANSISTOR MOSFET N-CH 25V 6SON TEXAS INSTRUMENTS	Продавец: ZK Electronic Technology Co., Limited	Part Number:CSD16301Q2 Description:CSD16301Q2 TRANSISTOR MOSFET N-CH 25V 6SON TEXAS INSTRUMENTS ...
	Конденсатор EEF-CX0J101R PANASONIC SMD SPEC полимер 100UF 6,3v SMD LF	Продавец: ZK Electronic Technology Co., Limited	Part name:EEF-CX0J101R Description:CAPACITOR EEF-CX0J101R PANASONIC SMD SPEC POLYMER 100UF 6.3V ...
	Heavy Copper PCB Manufacturer	Продавец: Xinfeng Huihe Circuits Co., Ltd.	Heavy Copper PCB, pcb fabrication up to 12oz, large current, pcb circuitfabrication base material...
	8 Layer ENIG Half Hole Custom PCB	Продавец: Xinfeng Huihe Circuits Co., Ltd.	Number of layers: 8 Surface finish: ENIG Base material: FR4 Outer Layer W/S: 4/3mil Inner lay...
	4 Layer ENIG Impedance Control Half Hole PCB Electric Circuit Board	Продавец: Xinfeng Huihe Circuits Co., Ltd.	Number of layers: 4 Surface finish: ENIG Base material: FR4 Outer Layer W/S: 6/4mil Inner lay...