Fuel Sensors, Relays & Switches
- ACDelco®GM Original Equipment™ Diesel Fuel Temperature SensorGM Original Equipment™ Diesel Fuel Temperature Sensor by ACDelco®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$24.09 - $41.20
- ACDelco®GM Original Equipment™ Flex Fuel SensorGM Original Equipment™ Flex Fuel Sensor by ACDelco®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$54.27 - $471.65
- ACDelco®GM Original Equipment™ Fuel Injector ConnectorGM Original Equipment™ Fuel Injector Connector by ACDelco®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$24.11 - $77.58
- ACDelco®GM Original Equipment™ Fuel Pump ConnectorGM Original Equipment™ Fuel Pump Connector by ACDelco®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$11.36 - $65.31
- ACDelco®GM Original Equipment™ Fuel Pump Control ModuleGM Original Equipment™ Fuel Pump Control Module by ACDelco®. Modern cars, trucks and SUVs are the wonder of electronics – and in that mix, there is nothing more critical to performance than the control modules that dictate the...ACDelco GM OE emission parts, fuel injectors and control modules earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditions.You can find an expanded line of emission and fuel injection parts for most GM vehicles.$39.89 - $111.52
- ACDelco®GM Original Equipment™ Fuel Pump Relay ConnectorGM Original Equipment™ Fuel Pump Relay Connector by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$28.22 - $39.89
- ACDelco®Genuine GM Parts Fuel Level SensorGenuine GM Parts Fuel Level Sensor by ACDelco®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide easy,...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$27.92 - $67.92
- ACDelco®Genuine GM Parts Water in Fuel SensorGenuine GM Parts Water in Fuel Sensor by ACDelco®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$32.85 - $114.67
- ACDelco®Genuine GM Parts™ Fuel Pump RelayGenuine GM Parts™ Fuel Pump Relay by ACDelco®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide easy,...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$10.29 - $122.36
- Dorman®Fuel Injection Fuel Rail Pressure SensorFuel Injection Fuel Rail Pressure Sensor by Dorman®. This diesel fuel injector pump driver relocation kit is designed to match the original components required to relocate the fuel injector pump on specified vehicles. It's made of...Direct replacement - this diesel fuel injector pump driver relocation kit is designed to match the original components required to repair the fuel injector pump on specified vehiclesIdeal solution - this kit is a reliable replacement for original components$39.66 - $75.43
- Dorman®OE Solutions Fuel Filler Door SwitchOE Solutions Fuel Filler Door Switch by Dorman®. This fuel filler door switch is designed to match the appearance and function of the original switch on specified applications. Made of quality materials, it is engineered for reliable...Direct replacement - this fuel filler door switch is made to match the fit and performance of the original switch on specific vehicle applicationsIdeal solution - this switch is a reliable replacement for an original part that has failed due to fatigue$25.57 - $39.55
- Dorman®OE Solutions Fuel Pump Relay ModuleOE Solutions Fuel Pump Relay Module by Dorman®. Original equipment fuel pumps often stop working when the modules cannot handle capacity and transistors on the PCB fail. This Dorman OE FIX replacement upgrades the internal hardware for...Upgraded replacement - this fuel pump relay module features enhanced internal hardware for greater reliabilityFailure-resistant design - increased current capacity in module prevents future transistor failure$49.54
- Dorman®OE Solutions Fuel Tank Pressure SensorOE Solutions Fuel Tank Pressure Sensor by Dorman®. This fuel tank pressure sensor is designed to match the fit and function of the original sensor on specified vehicles, and is engineered for durability and reliable performance.Direct replacement - this fuel tank pressure sensor is designed to match the fit and function of the original sensor on specified vehiclesIdeal solution - this sensor is a reliable replacement for an original part that has failed due to fatigue or electrical malfunction$56.49 - $168.80
- Dorman®TECHoice Fuel Sending Unit PigtailTECHoice Fuel Sending Unit Pigtail by Dorman®. This fuel sender connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable...Ideal solution - this connector is a reliable replacement for an original part that is missing or has failed due to fatigueDurable construction - this part is made from quality materials to ensure reliable performance and long service life$33.27
- Mopar®Acceleration SensorAcceleration Sensor by Mopar®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide easy, no-hassle...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$22.97 - $170.20
- Genuine®Fuel Injection RelayFuel Injection Relay by Genuine®. If your fuel system parts are in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain store. On our website...Designed to restore your vehicle’s fuel delivery systemGenuine OE replacement parts from the OE manufacturer$15.54 - $201.48
- Genuine®Fuel Pump Control ModuleFuel Pump Control Module by Genuine®. If your fuel system parts are in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain store. On our...Designed to restore your vehicle’s fuel delivery systemGenuine OE replacement parts from the OE manufacturer$448.48 - $631.85
- Standard®Fuel Pressure Sensor ConnectorFuel Pressure Sensor Connector by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to all...Each part has high-quality direct replacement electrical connector eliminates the need for a harness replacing only the damaged connector, for a cost effective repair solutionThe terminal is manufactured with high grade materials such as copper alloy, brass, and phosphor bronze. The housing is fabricated using polyamide resins. All of the materials together provide the connectors with prolonged life and superior performance in harsh environments$34.90 - $81.99
- Standard®Intermotor™ Fuel Pressure SensorIntermotor™ Fuel Pressure Sensor by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$33.55 - $400.13
- Motorcraft®Fuel Injector ConnectorFuel Injector Connector by Motorcraft®. Motorcraft is the way to restore the performance of your vehicle. Designed specifically for your vehicle, Motorcraft products meet stringent Ford Motor Company standards and feature OEM quality...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$24.48 - $59.97
- Motorcraft®Fuel Rail Pressure Sensor ConnectorFuel Rail Pressure Sensor Connector by Motorcraft®. Motorcraft is the way to restore the performance of your vehicle. Designed specifically for your vehicle, Motorcraft products meet stringent Ford Motor Company standards and feature...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$14.06 - $56.88
- WVE®Fuel Injection Pressure SensorFuel Injection Pressure Sensor by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or exceed...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$31.34 - $2,117.64
- WVE®Fuel Pump Harness ConnectorFuel Pump Harness Connector by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or exceed...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$8.96 - $32.20
- WVE®Fuel Tank Selector Valve ConnectorFuel Tank Selector Valve Connector by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$19.50
- WVE®Throttle Control RelayThrottle Control Relay by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or exceed the OEM...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$5.72 - $21.65
- Denso®Fuel Pump RelayFuel Pump Relay by Denso®. Denso has supplied quality relays to the OE automotive world for over 60 years. The very same performance and dependability are available across the replacement aftermarket with Denso First Time Fit™ relays.Lead-free, solderless construction prevents heat shock and arcingControlled contact force, self-adjusting air gap increase longevity of the internal parts$16.52 - $46.33
- DIY Solutions®Fuel Tank Pressure SensorFuel Tank Pressure Sensor by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should definitely look out for. When it comes to quality,...Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again$26.47
- URO Parts®Fuel Pump RelayFuel Pump Relay by URO Parts®. Swap out your worn out factory fuel part with this fuel component that offers the same quality and performance as the OE for less money. After installation, you can rest assured that your fuel system works...Designed to replace your factory fuel partHelps to restore the proper operation of your fuel system$3.60 - $107.85
- SMP®Fuel Pump RelayFuel Pump Relay by SMP®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...Designed specifically for motorcycle applicationsPerfect to help you work more efficiently$16.08
- SMP®Intermotor Fuel Injector ConnectorIntermotor Fuel Injector Connector by SMP®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Designed specifically for motorcycle applicationsPerfect to help you work more efficiently$13.81
For a modern electronic fuel injection system to function properly, there must be an accurate and continuous flow of electrical signals from the various sensors that supply information to the PCM (Powertrain Control Module). The PCM uses this input along with internal programming, to control the system through the output of signals to actuators like fuel injectors, relays, valves and motors, ensuring optimal performance and economy with minimal emissions.
The causes of sensor failure can vary according to the type of sensor and its location. All electrical components are exposed to temperature extremes and the environment. Contamination, mechanical breakage, and corrosion and wiring damage that can cause opens or short circuits can all result in electrical malfunctions. Besides poor performance, such events will usually cause a fault code to be stored in the PCM and the illumination of the CHECK ENGINE light.
On most late model electronically fuel injected vehicles, the PCM must receive a cranking signal from the crankshaft or camshaft sensor before energizing the fuel pump relay. The relay in turns applies voltage to the fuel pump so it can pressurize the fuel system. When the engine is running, fuel system sensors supply engine load and driver demand info to the PCM so it can in turn calculate fuel flow. The Mass Air Flow (MAF) sensor measures the amount of air entering the engine and the Throttle Position Sensor (TPS) indicates throttle plate position and opening speed, and the driver’s desired rate of acceleration.
When the engine warms up it goes into closed loop, and the PCM uses input from the oxygen sensor along with the other fuel system sensors to calculate fuel flow. The oxygen sensor compares the oxygen content in the exhaust stream with atmosphere in order to maintain the most efficient air/fuel ratio for combustion. In response to these inputs, the PCM varies the fuel injector pulse width to suit fuel demands. In general, the pulse width is shorter at idle when less fuel is needed, and lengthened when the engine is under load and more fuel is needed. The PCM also controls other actuators like the Idle Air Control (IAC) valve.
Although individual components can fail, it’s also common for corrosion and breaks in wires and connectors to cause shorts and opens that can result in circuit failures, and even cause a voltage overload that can destroy an expensive component like a PCM. It’s usually difficult or impossible to clean and repair the small, delicate contacts in electrical connectors, so in addition to our large selection of replacement fuel system sensors, switches, relays, and actuators, we also have the OE connectors for most of these components, complete with the wiring “pigtail” so the connector can easily be spliced into the harness.