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FJO Racing Products has released its new Wideband Air/Fuel Ratio Analysis System. This product is similar to the 2nd generation FJO Wideband and supports the same sensors, however the unit is 60% smaller. The wideband controllers are designed to be integrated with all current products that support our wideband, as well as being backwards compatible with most older systems and products.

The new, 3rd generation controller offers the basic air/fuel ratio and RPM measurements, a serial output, the new FJO Digital Data Bus, and dual AFR voltage outputs. One of the voltage outputs is fully user-programmable. Using the FJO WBAFR software, tuners can now data log RPM and 8 AFR channels without the need of an external datalogging device. Using "Leanest Channel Mode" it is possible to monitor 8 AFR channels with only one display. The user-programmable AFR output makes it possible to connect this product to almost any device. These features, combined with a user-replaceable sensor harness available in various lengths, provide the user with a reliable and accurate, expandable 8 channel plug-and-go solution. Built to the same rugged specifications as our first wideband, this product continues the FJO tradition of providing affordable, high quality products to those who demand the best.


  • Data log up to 8 AFR channels simultaneously
  • Sensing range from 10:1 to 20:1 AFR for gasoline
  • Accuracy better than 0.1 AFR over the range 10.5:1 to 15.5:1
  • Sampling rate greater than 250 per second
  • 2 channel programmable AFR voltage output for use with ECU or datalogger
  • Serial output for display(s) or datalogging
  • Tach input from 0 to 20,000 RPM
  • Comprehensive analysis software
  • Replaceable sensor harness
  • -40° to +85°C [-40 to +185 °F] ambient operating temperature range
  • Dash-mounted AFR displays
  • Multi-sensor support (NTK and Bosch sensors)
  • High speed FJO Digital Data Bus for expansion


  • Seamless integration with other FJO products
  • Free updates/upgrades to software and controller firmware for the life of the product
  • Built for the racing environment to withstand heat, vibration, dirt and water
  • Free direct technical support