Wideband O2 Controllers/Sensors

At DIYAutoTune, we offer a wide selection of wideband O2 sensor systems from leading brands like 14point7, Innovate Motorsports, and AMP EFI. These systems feature advanced digital technology that adjusts for weather conditions, temperature fluctuations, and sensor aging, ensuring you get the most accurate readings. Whether you’re running a MegaSquirt, MSPNP, or MS3Pro ECU, we’ve got the perfect wideband solution for you.

Maintaining optimal air-fuel ratio (AFR) is critical for precise tuning, and a wideband O2 sensor system is the best tool for the job. It enables AFR datalogging with MegaSquirt ECUs, supports closed-loop EGO fuel corrections, and unlocks “Autotune” functionality in TunerStudio’s VEAnalyze Live. (A registered version of TunerStudio is required for VEAnalyze Live.) Whether you’re tuning with EFI or adjusting carburetors, a wideband system ensures accurate AFR monitoring and adjustments.

DIYAutoTune is proud to be an authorized dealer for 14point7, Innovate Motorsports, and AMP EFI wideband O2 products. Our knowledgeable sales team is here to help you select the right system for your needs, and we provide full support for every product we sell.

EPA, CARB & Emissions Disclaimer- All ECU's are for race purposes only. It's your responsibility to remain in compliance with all federal, state, provincial, or other laws that apply to you.

Showing all 15 results

14point7 Spartan 3 Lite V2 Wideband Controller
$81.99 – $181.99
The Spartan 3 Lite v2 is a streamlined, high-precision wideband oxygen controller designed for the Bosch LSU 4.9 and LSU ADV sensors. Built for performance without excess, it offers all the essentials for reliable wideband monitoring. With both a pro...
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14point7 Spartan 3 V2 Wideband Controller
$138.99 – $238.99
The Spartan 3 V2 is a streamlined, high-performance CAN bus-enabled wideband oxygen controller, engineered for precision. It supports both Bosch LSU 4.9 and LSU ADV wideband sensors and delivers superior accuracy without unnecessary extras. Equipped ...
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Innovate LC-2 Digital Wideband Controller with Sensor – 38770
5 out of 5
$169.99
The Innovate LC-2 Digital Wideband Controller delivers precision and reliability in air-fuel ratio measurement. With advanced digital technology and a high-quality Bosch LSU 4.9 sensor, this system is ideal for performance tuning and diagnostics. Compatib...
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Innovate DB Series LC-2 Wideband Gauge Kit
$189.99
The Innovate DB Gauge LC-2 Wideband Air/Fuel Ratio Kit provides precision air-fuel ratio monitoring with a choice of blue, red, or green gauge faces. Powered by Innovate’s LC-2 digital wideband controller and Bosch LSU 4.9 sensor, this kit is designed f...
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Innovate DB Gauge ONLY
$94.17
The Innovate Motorsports DB Gauge is a high-performance air-fuel ratio (AFR) gauge designed to deliver precise, real-time AFR readings with a distinctive green display. Engineered for enthusiasts and professionals who demand accuracy and reliability, this...
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Innovate MTX-AL Analog Wideband AFR Gauge – 38550
$235.99
The Innovate MTX-AL combines the accuracy of Innovate’s Direct Digital wideband control technology with a classic analog gauge for a complete air-fuel ratio monitoring solution. It offers the proven performance of the MTX-L system but with an analog nee...
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Innovate MTX-L Plus Digital Wideband AFR Gauge – 39180
5 out of 5
$201.99
The Innovate MTX-L Plus is the next evolution in wideband gauge technology, offering unparalleled speed, accuracy, and durability. Featuring Innovate’s patented DirectDigital™ technology and advanced sensor control, the MTX-L Plus optimizes heater con...
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Innovate SCG-1 Wideband Gauge and Boost Controller – 38820
$418.99
The Innovate SCG-1 Solenoid Controller Kit combines advanced boost control and wideband air-fuel ratio monitoring in a single, compact unit. This kit is designed for serious performance enthusiasts who require precise control over their turbocharged setup...
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Innovate Bosch LSU 4.9 Wideband Sensor with 8′ Cable Kit – 38970
$107.78
The Bosch LSU 4.9 Sensor and 8ft Sensor Cable Bundle is the ultimate solution for those seeking precision, reliability, and long-lasting performance in air-fuel ratio monitoring. Known for its exceptional accuracy, this sensor is the standard choice for t...
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Innovate Bosch LSU 4.9 Wideband O2 Sensor – 38880
5 out of 5
$87.89
The Bosch LSU 4.9 Sensor is the ultimate solution for those seeking precision, reliability, and long-lasting performance in air-fuel ratio monitoring. Known for its exceptional accuracy, this sensor is the standard choice for tuning and performance monito...
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Innovate Bosch LSU 4.2 Wideband O2 Sensor – 37370
5 out of 5
$106.11
The Bosch LSU 4.2 Oxygen Sensor is a high-performance, wideband O2 sensor designed for precise air-fuel ratio measurement. Trusted by tuners and OEMs alike, the LSU 4.2 is engineered for durability and accuracy in both high-performance and daily driving a...
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O2 Sensor Flange – Toyota Models
$15.00
The O2 Sensor Flange for Toyota Models is designed for a wide range of Toyota vehicles, ensuring a secure fit for oxygen sensors in exhaust systems. This flange is engineered to fit Toyota models from the late 1980s through the mid-2000s, making it ideal ...
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Innovate Extended O2 Sensor Bung and Plug Kit – 37640
$11.53
The Innovate Extended O2 Sensor Bung is designed for those who need a reliable solution for sealing oxygen sensor bungs when not in use. Crafted from durable mild steel, this extended bung plug is perfect for applications requiring extra length or added c...
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M18X1.5 Thread Mild Steel Bung and Plug Kit – 37350
$10.59
The Innovate Bung Plug Kit is a high-quality solution designed to seal wideband O2 sensor bungs when the sensor is not in use. Constructed from durable materials, this bung plug ensures a secure fit and long-lasting performance, preventing exhaust leaks w...
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Innovate HBX-1 Heat Sink Bung Extender – 37290
$82.54
The Innovate Heat Sink Bung Extender (HBX-1) is engineered to protect your wideband O2 sensor from excessive heat and extend its life in high-temperature applications. The HBX-1 features an innovative heat sink design that dissipates heat away from the se...
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