Fuel Sensors, Relays & Connectors

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    • (0 reviews)
      # sp123624
      Fuel Return Line by Merchant Automotive®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
      High quality at an affordable priceExpertly made from premium materials
      $86.74
    • (0 reviews)
      # mpn44445004
      Idle Speed Control Motor by Standard®. SMP’s vision 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...
      High quality at an affordable priceExpertly made from premium materials
      $124.75
    • (0 reviews)
      # mpn44421139
      Idle Speed Control Motor by Standard®. SMP’s vision 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...
      High quality at an affordable priceExpertly made from premium materials
      $73.38
    • (0 reviews)
      # mpn44431696
      Idle Speed Control Motor by Standard®. SMP’s vision 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...
      High quality at an affordable priceExpertly made from premium materials
      $71.09
    • (0 reviews)
      # mpn44414991
      Idle Speed Control Motor by Standard®. SMP’s vision 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...
      High quality at an affordable priceExpertly made from premium materials
      $26.08
    • (0 reviews)
      # mpn44446247
      Idle Speed Control Motor by Standard®. SMP’s vision 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...
      High quality at an affordable priceExpertly made from premium materials
      $90.04
    • (0 reviews)
      # mpn44446247
      Idle Speed Control Motor by Standard®. SMP’s vision 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...
      High quality at an affordable priceExpertly made from premium materials
      $90.04
    • (0 reviews)
      # sp110208
      Flex Fuel Sensor by VDO®. The flex fuel sensor is mounted in the fuel line between the fuel tank and injectors. Its output signal is fed to the engine control unit. Injection rate and ignition timing are adjusted according to the...
      Premium parts you can rely onDesigned to keep your system in top shape
      $64.09 - $343.59
    • (0 reviews)
      # mpn4524522218
      Fuel Injection Main Relay by Kaehler®. Electrically and Mechanically Proofed Products from German Manufacturer. Checked on test bench and German Autobahn "highways" in series vehicles. This product is made of high-quality materials to...
      Made in compliance with ISO 9001 standardsLeading innovations guarantee great service life
      $25.66
    • (1 review)
      # mpn4618012175
      Fuel Pump Relay by Wittrin®. Wittrin is your expert for development and production of small-scale series as well as for the reproduction of classic spare parts. Construction Wittrin Electronic develops and reproduces according to your...
      Made to deliver second to none quality and absolute reliabilityFully tested to provide ultimate reliability and stability
      $8.28
    • (0 reviews)
      # mpn4479851722
      GM Original Equipment™ Barometric Pressure Sensor by ACDelco®. Designed utilizing the latest technology, this Barometric Pressure Sensor by ACDelco features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $51.11
    • (0 reviews)
      # sp28036
      Fuel Injection System Heater by Standard®. SMP’s vision 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...
      Terminals are constructed with high-quality aluminum material that provides better conductivity for optimal performanceO-rings are made from high-quality Viton® material for proper sealing and endurance under extreme operating conditions
      $46.70 - $170.52
    • (0 reviews)
      # sp123529
      Throttle Position 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 OEM...
      Direct OEM replacementMeets strict Ford Motor Company standards
      $17.51 - $43.10
    • (0 reviews)
      # sp155121
      Throttle Position Sensor by Fuel Injection®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
      Rigorously tested for impeccable quality, ever-lasting durability and perfect fitCompliant with the most strict standards for quality
      $155.59 - $170.64
    • (0 reviews)
      # mpn4547618033
      Remanufactured Fuel Injector Control Module Board Kit by Bostech®. The Bostech FICM-IDM is the right choice for any injector driver module problem. The Bostech FICM makes replacement clean, easy and fast. When low voltage conditions are...
      Compliant with the strictest standards for qualityExpertly crafted using the up-to-date technology
      $199.95
    • (0 reviews)
      # mpn4524521989
      Barometric Pressure Sensor by Facet®. Facet products are designed, manufactured, and tested internally and the external works are entrusted to selected partners, that operate in an integrated manner with Facet processes, following Facet...
      The reliable goods for increase of reliability of the carQuality equal, if not superior, to that of the original components
      $59.79
    • (0 reviews)
      # sp126318
      Fuel Injection Throttle Switch by Facet®. Facet products are designed, manufactured, and tested internally and the external works are entrusted to selected partners, that operate in an integrated manner with Facet processes, following...
      The reliable goods for increase of reliability of the carQuality equal, if not superior, to that of the original components
      $29.13 - $44.96
    • (0 reviews)
      # sp122551
      Pigtail by Pioneer Automotive®. By having own manufacturing facilities Pioneer Automotive® can guarantee the best quality in the market with the most competitive cost structure. Their OEM facilities help maintain the most strict...
      Made to deliver reliable service for a long timeRugged construction to withstand harsh conditions
      $8.66 - $93.28
    • (0 reviews)
      # sp135453
      Fuel Pump Relay by Original Engine Management®. OEM offers the highest quality parts available. With vehicle systems becoming more and more complex, electronic components and sensors must be manufactured to precise tolerances as not to...
      Made to deliver trouble-free operation for years aheadManufactured with cutting-edge technology
      $6.16 - $40.47
    • (0 reviews)
      # mpn4495899325
      Multi Purpose Relay by Wittrin®. Round. 5 Pin. Red. Wittrin is your expert for development and production of small-scale series as well as for the reproduction of classic spare parts. Construction Wittrin Electronic develops and...
      Made to deliver second to none quality and absolute reliabilityFully tested to provide ultimate reliability and stability
      $25.69
    • (0 reviews)
      # sp10590
      GM Original Equipment™ Fuel Pump Driver 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...
      98% application coverage for GM Vehicles, dating back to 1986GM-recommended replacement part for your GM vehicle’s original factory component
      $45.57 - $403.55
    • (0 reviews)
      # sp101937
      Throttle Position Sensor by Delphi®. Delphi sensors use the Hall Effect or magneto resistive (MR) principles for accurate and clean signal input to the electronic control module (ECM). The result is more design flexibility to address...
      High quality at an affordable priceExpertly made from premium materials
      $22.30 - $116.32
    • (0 reviews)
      # sp111960
      GM Original Equipment™ Fuel Injection Idle Air Control Valve 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $4.03 - $523.14
    • (1 review)
      # sp10631
      GM Original Equipment™ Throttle Position Sensor by ACDelco®. Keep your Fuel and Ignition Systems working in sync with ACDelco GM OE Throttle Position (TP) Sensors, for most GM vehicles.
      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.Electronically informs the PCM of the throttle valve angle.
      $28.36 - $128.99
    • (0 reviews)
      # sp111992
      Professional™ Throttle Position Sensor 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, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $20.42 - $187.40
    • (0 reviews)
      # sp7701
      Fuel Injection Idle Air Control Valve by Bosch®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...
      High quality at an affordable priceExpertly made from premium materials
      $117.54 - $297.64
    • (0 reviews)
      # sp135292
      Throttle Position Sensor by Bosch®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality...
      High quality at an affordable priceExpertly made from premium materials
      $39.02 - $221.06
    • (0 reviews)
      # sp135293
      Throttle Switch by Bosch®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an...
      High quality at an affordable priceExpertly made from premium materials
      $54.80 - $91.25
    • (0 reviews)
      # sp111892
      Throttle Position Sensor by Standard®. SMP’s vision 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 Standard® TH445 is a direct-fit replacement sensor that restores proper information transfer to the ECU on throttle position providing efficient fuel economy and engine performanceEach Standard® throttle position sensor features quality construction that promotes accurate communication of throttle valve angle to the vehicles computer, resulting in improved performance
      $17.54 - $222.77
    • (1 review)
      # sp111894
      Tru-Tech™ Throttle Position Sensor by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for...
      High quality at an affordable priceExpertly made from premium materials
      $15.30 - $83.17




    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.

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    Fuel Pump Control ModulesFuel Injector Control ModulesFuel Pressure SensorsThrottle Position SensorsWater in Fuel SensorsFlex Fuel SensorsFuel Level SensorsAcceleration SensorsFuel Temperature SensorsFuel Pump RelaysFuel Injection RelaysAutomatic Choke RelaysIdle Speed Control RelaysFuel Injection Cold Start RelaysFuel Injection Combination RelaysFuel Injection HarnessFuel Injection Throttle SwitchesFuel Injection Thermal & Time SwitchesFuel Carburetor Choke Heater SwitchesFuel Pump & Engine Oil Pressure Indicator SwitchesTank Selector SwitchesFiller Door SwitchesFuel Pump Cut-Off SwitchesPump Inertia SwitchesMixture Control Solenoid ConnectorsFuel Injector ConnectorsFuel Pump ConnectorsFuel Sender ConnectorsThrottle Position Sensor ConnectorsThrottle Actuator ConnectorsFuel Injection Harness ConnectorsFuel Pressure Sensor ConnectorsWater in Fuel Sensor ConnectorsIdle Air Control Valve ConnectorsTank Harness ConnectorsCarburetor Choke Thermostat ConnectorsFuel Level Sensor ConnectorsFuel Shut-Off Solenoid ConnectorsSensor ConnectorsIdle Speed Control Motor ConnectorsFuel Temperature Sensor ConnectorsThrottle Control Motor ConnectorsHeater ConnectorsTank Selector Switch ConnectorsFiller Door Switch ConnectorsTank Selector Valve ConnectorsFuel Injection Cut-off ValvesFuel Shut-off SolenoidsFuel Level Sensor BracketsElectronic Control UnitsFuel Rail Pressure SensorsBarometric Pressure SensorsBarometric Pressure Sensor ConnectorsTank Pressure SensorsIdle Speed Control Power Steering Pressure SwitchesTurbine Speed Sensor Connectors

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    Fuel Injection Sensors Reviews

    Average rating:    4.5 - 39 reviews
    4.3 of 5
    Chris in La Mesa
    Got here 4 days late. Really screwed me up. Was supposed to go to a wedding in Santa Barbara that weekend! Part was in great shape, went in really easy!!! No reception no wedding! Mahalo.
    Posted by Chris (La Mesa, CA) / November 1, 20182007 Ford Focus
    Was this review helpful for you? Yes
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