Best Fuel Injection Reference Mark Sensors of 2026

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 25, 2026

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Fuel injection reference mark sensors are essential components of modern fuel injection systems. These sensors are designed to accurately detect the position of the engine's crankshaft, allowing the fuel injection system to deliver the right amount of fuel at the right time. This ensures optimal engine performance and efficiency. The sensors work by detecting a reference mark on the crankshaft, which is used to determine the engine's position and speed. Fuel injection reference mark sensors are available for a wide range of vehicles and are often sold as individual components or as part of a complete fuel injection system.

At a Glance: Our Top Picks

Bosch Camshaft Position Sensor for Volkswagen Cover #TOP 1
Bosch Camshaft Position Sensor for Volkswagen
ftb score rating icon 9.8
Bosch Crankshaft Position Sensor 0261210204 Cover #TOP 2
Bosch Crankshaft Position Sensor 0261210204
ftb score rating icon 9.7
Bosch Automotive 0232101022 Reference Mark Sensor Cover #TOP 3
Bosch Automotive 0232101022 Reference Mark Sensor
ftb score rating icon 9.5

Top 10 Fuel Injection Reference Mark Sensors

#TOP 1

Bosch Camshaft Position Sensor for Volkswagen

0232101031
Cramshaft
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Bosch Camshaft Position Sensor for Volkswagen Cover
BOSCH 0232101031 Original Equipment Camshaft Position Sensor - Compatible with Select Volkswagen Beetle, Golf, Jetta

The Bosch Camshaft Position Sensor is an OE sensor that accurately determines the engine position, ensuring precise fuel injection and ignition sequence. The sensor has a robust design featuring twist-insensitive mounting for easy installation and reliable digital measurement, withstanding extreme hot and cold operating conditions. It delivers precision operation, long service life, and optimum fuel mileage. It replaces OE number 06A905161B and is compatible with select Volkswagen vehicles.

What We Like
Easy installation process
Restores engine performance
OEM quality and fit
Resolves check engine codes
Good value for price
What We Don't Like
Possible used item received
#TOP 2

Bosch Crankshaft Position Sensor 0261210204

0261210204
Crankshaft
261210204
Bosch Crankshaft Position Sensor 0261210204 Cover
BOSCH 0261210204 Original Equipment Crankshaft Position Sensor - Compatible with Select Porsche 911, Boxster

The Bosch Crankshaft Sensor is designed to fit perfectly and work reliably in your vehicle, making installation hassle-free. It operates well under a wide range of temperatures, ensuring accurate engine readings no matter the weather. This accuracy helps your car run cleaner by reducing emissions and improves fuel efficiency, saving you money at the pump. Additionally, the sensor is built to resist interference from external sources, so you can count on consistent performance and smoother driving. With this sensor, you get a dependable upgrade that supports your vehicle’s engine management system effectively.

What We Like
Genuine Bosch OEM quality
Easy installation process
Accurate sensor readings
Good value for price
Fast shipping
What We Don't Like
Occasional warranty information confusion
Potential for receiving wrong part
#TOP 3

Bosch Automotive 0232101022 Reference Mark Sensor

0232101022
Bosch Automotive 0232101022 Reference Mark Sensor Cover
BOSCH 0232101022 Reference Mark Sensor

The Bosch Reference Mark Sensor is a high-quality fuel injection sensor that guarantees accurate readings for your vehicle. With its twist-insensitive mounting, you can easily install it without worrying about the sensor's orientation. This sensor is designed to operate efficiently in a wide range of temperatures, ensuring reliable performance in any weather condition. By providing accurate readings, it helps create lower emissions and improve fuel consumption, ultimately saving you money at the pump. The Bosch Reference Mark Sensor meets or exceeds OEM specifications, guaranteeing a perfect fit and function. Upgrade your vehicle's fuel injection system with this reliable and durable sensor.

What We Like
Accurate Readings
Twist-insensitive Mounting
Wide Range of Operational Temperatures
#TOP 4

Nissan X-TRAIL Daylight Sensor Assembly 28438-4CC5B

28438-4CC5B
X-TRAIL
Nissan X-TRAIL Daylight Sensor Assembly 28438-4CC5B Cover
NISSAN Genuine Parts Sensor Assembly Daylight X-TRAIL Model Number 28438-4CC5B

The Nissan X-TRAIL Sensor is designed specifically for X-TRAIL models, ensuring a perfect fit and reliable performance. It is compatible with various model codes including HNT32, HT32, NT32, and T32, making it versatile for different versions of the X-TRAIL. This sensor suits vehicles from December 2013, so you can be confident it matches your car's manufacturing date. Before purchasing, it’s important to check compatibility with your vehicle’s grade and year to avoid any fitment issues. This sensor helps maintain your vehicle's fuel injection system by providing accurate reference marks, contributing to smoother operation and better fuel efficiency.

What We Like
Model-specific compatibility
Fits multiple X-TRAIL versions
Suitable for 2013 and later
Supports fuel injection system
#TOP 5

Honda Left Fuel Injection Mark 86172-K17-670ZA

86172-K17-670ZA
Honda Left Fuel Injection Mark 86172-K17-670ZA Cover
HONDA 86172-K17-670ZA MARK, L. (TYPE2)

The Honda Left Mark Sensor is a genuine part designed specifically for your Honda vehicle, ensuring a perfect fit. This sensor is meant for the left side of your fuel injection system, helping your vehicle maintain accurate fuel delivery. With the part number 86172-K17-670ZA, you can easily confirm you have the exact component needed. Manufactured to meet Honda's strict standards, it guarantees reliable performance and proper function, giving you peace of mind that your vehicle will operate smoothly and efficiently.

What We Like
Genuine Honda part
Precise left-side fit
Exact part number
Manufactured to Honda specs
#TOP 6

Bosch 0281002123 Reference Mark Sensor

0281002123
Bosch 0281002123 Reference Mark Sensor Cover
Bosch 0281002123 Reference Mark Sensor

The Bosch 0281002123 Reference Mark Sensor is a brand-new OEM part by Bosch Automotive. This sensor, also known as the Bosch Crankshaft Sensor or B2-0281002123, is specifically designed for fuel injection systems. It plays a crucial role in accurately determining the position of the crankshaft, ensuring precise fuel injection timing. With this sensor, you can expect improved engine performance, better fuel efficiency, and reduced emissions. The brand-new quality of this Bosch sensor guarantees its reliability and durability, making it a trusted choice for your vehicle's fuel injection system.

What We Like
Brand-new OEM part
Precise fuel injection timing
Improved engine performance
#TOP 7

Honda Genuine Fuel Sending Unit 37800-GET-003

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Honda Genuine Fuel Sending Unit 37800-GET-003 Cover
Genuine OEM For Honda FUEL SENDING UNIT 2002-2009 CHF50 METROPOLITAN SENDER GAS SENSOR 37800GET003 37800-GET-003

The Honda Fuel Sender Unit is an authentic Japanese part designed for the 2002-2009 CHF50 Metropolitan model. Using this genuine component ensures you get reliable performance and compatibility with your vehicle. It’s crucial to confirm the part number or share your VIN before buying to make sure it fits perfectly, saving you time and hassle. This fuel sensor helps accurately measure your gas level, so you can avoid unexpected fuel shortages and keep your ride smooth. With the Honda Fuel Sender Unit, you get peace of mind knowing you’re using a trusted, original part made specifically for your scooter.

What We Like
Genuine Japanese part
Compatible with 2002-2009 CHF50
Accurate fuel level sensing
Part number verification
#TOP 8

Honda Fuel Reserve Sensor 37810-MER-D01

38510-MFR-A01
Honda Fuel Reserve Sensor 37810-MER-D01 Cover
HONDA 37810-MER-D01 SENSOR, FUEL RESERVE

The Honda Fuel Reserve Sensor is an essential component for managing fuel levels in your vehicle. It accurately monitors the fuel reserve, ensuring you are aware of your remaining fuel. This helps you avoid unexpected stops for refueling. The sensor is designed to work seamlessly with Honda's fuel injection system, providing reliable performance. Its durable construction means you can count on it for long-term use, enhancing your vehicle's efficiency. By using this sensor, you can enjoy peace of mind knowing your fuel levels are being monitored effectively.

What We Like
Accurate fuel level monitoring
Enhances vehicle efficiency
Durable construction
Reliable performance
#TOP 9

NISSAN Chiyub Pretssier Sensor for Infiniti Q45 President

52582-62U00
NISSAN Chiyub Pretssier Sensor for Infiniti Q45 President Cover
NISSAN Genuine Parts Chiyub Pretssier Sensor Infiniti Q45 President Part Number 52582-62U00

The NISSAN Pretssier Sensor is designed for use with Infiniti Q45 and President models, specifically compatible with various series like G50 and HG50 from 1989 to 1999. Before purchasing, you should confirm compatibility with your vehicle's manufacturer to ensure it fits correctly, as fitment can vary by model grade and year. This sensor is part of the fuel injection reference system, helping your vehicle manage fuel delivery efficiently. Installing the right sensor ensures your car runs smoothly and maintains proper performance over time.

What We Like
Wide model compatibility
Fuel injection sensor
Fits 1989-1999 models
Genuine NISSAN part
#TOP 10

Floweringbeter Fuel Gauge Sensor for A6 4G C7 Left Upper

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Floweringbeter Fuel Gauge Sensor for A6 4G C7 Left Upper Cover
Fuel Gauge Sensor for For A6 4G C7 Left Upper, OEM 4G0919673C, Replacement Part

The Floweringbeter Fuel Sensor is specially designed for the A6 4G C7 model, ensuring you get precise fuel level readings for reliable performance. Made from durable ABS material, this sensor is built to withstand wear and resist damage, giving you long-lasting use. It’s also crafted for easy installation, so you can replace it quickly and get back on the road without frustration. Plus, it features the OEM part number 4G0919673C, helping you confirm it fits your vehicle perfectly before buying. This sensor combines accuracy, durability, and convenience for a hassle-free upgrade.

What We Like
Accurate fuel readings
Durable ABS construction
Easy installation
OEM part compatibility
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What sensors are needed for the fuel injection system to work?

Several sensors are essential for the fuel injection system to work effectively. These include Mass Air Flow (MAF) sensors, Oxygen (O2) sensors, Throttle Position sensors, Manifold Absolute Pressure (MAP) sensors, and Engine Coolant Temperature (ECT) sensors. Each of these sensors plays a crucial role in providing important data to the fuel injection system for optimal performance.

2. What is the most important sensor in the fuel system?

The most important sensor in the fuel system is the Oxygen (O2) sensor. It is responsible for measuring the fuel-air mixture and evaluating the performance of the catalytic converter (CAT) in the vehicle's exhaust system. The data provided by the O2 sensor is vital for maintaining proper fuel efficiency and emissions control.

3. What is the most important sensor in the fuel management system?

The most important sensor in the fuel management system is the Oxygen (O2) sensor. It monitors the amount of unburned oxygen in the exhaust and provides this information to the powertrain control module (PCM). The PCM uses this data to determine if the fuel mixture is too rich (excess fuel) or too lean (insufficient fuel), allowing for adjustments to be made for optimal performance and fuel economy.

Editor's Notes

During our fuel injection reference mark sensor research, we found 24 fuel injection reference mark sensor products and shortlisted 10 quality products. We collected and analyzed 11,340 customer reviews through our big data system to write the fuel injection reference mark sensors list. We found that most customers choose fuel injection reference mark sensors with an average price of $140.15.

The fuel injection reference mark sensors are available for purchase. We have researched hundreds of brands and picked the top brands of fuel injection reference mark sensors, including Bosch, NISSAN, Honda, Floweringbeter. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.