FuelTech WB-O2 Nano V2 - Wide Band O2 Conditioner
FuelTech WB-02 Module
- O2 sensor controller
- Displays lambda, AFR gasoline, AFR ethanol, AFR methanol
- 3 configurable sensor heating modes
- CAN communication with FuelTech PowerFT and VisionFT ECUs
- Compact screen with numerous features
- Compatible with Bosch 4.2, 4.9, 5.2, NTK ZFAS and Wideband sensors
- IP67 certified waterproof casing
Ask a question about this productFuelTech WB-O2 Nano V2 - Wide Band O2 Conditioner Specifications
The FuelTech WB‑O2 Nano V2 module is a discreet, versatile, performance-oriented wideband O₂ sensor controller. It provides reliable air-fuel ratio (AFR) measurement while optimising ECU input usage via CAN bus, and integrates easily into existing installations thanks to its compact, durable design.
This module is compatible with five wideband O₂ sensors: Bosch LSU 4.2, Bosch LSU 4.9, Bosch LSU 5.2, NTK ZFAS and NTK Wideband. It offers three heating modes that can be configured via CAN: normal, fast and current-limited, with an auto start-up function to quickly reach the optimum sensor temperature.
With an extended reading range, this device is capable of measuring slightly below 0.21 λ, thanks to advanced hardware that enables fast and accurate measurements. Data transmission via CAN is possible with FuelTech PowerFT and VisionFT ECUs, which frees up analogue inputs and allows multiple modules to be connected (bank to bank or individual cylinder reading).
This new version offers a compact display, retaining the appearance of the original Nano version, but with new features: day/night brightness adjustment, shift light alert, and a housing optimised to match the NanoPRO mounting points. Finally, its IP67 protection rating is ideal for marine, off-road, or automotive use.
For full technical specifications and features, please visit the manufacturer's official website.
Please note: harnesses and sensors are optional extras and are not supplied as standard with the WB-02 Nano V2.
WB-O2 Nano V2 video presentation:
FuelTech is a Brazilian company founded in 2003, specialising in the development of electronic solutions for high-performance engine management. It designs and manufactures ECUs with built-in digital dashboards and software for racing vehicles. Recognised worldwide, the brand is highly regarded in motorsport circles for the precision and reliability of its products.
In January 2025, FuelTech smashed its hub dyno record with the Szabolics Marchese Racing team's twin-turbo Chevrolet Camaro Pro Mod, powered by a Pro Line Hemi MH7 engine, Precision Turbo Next-Gen 98 mm turbos and a TurboSmart BoostGate 50 electronic valve. It achieved an incredible 5,395 hp at the wheels at 8,800 rpm, which is more than 6,000 hp at the crankshaft! Built by RJ Race Cars, fuelled by 720 lb/h injectors and a FuelTech system, this performance highlighted the Brazilian company's technical expertise in engine management.