Description The MicroTech LSU 4.9 Wideband Air/Fuel Ratio Kit is a useful addition to any ECU installation, allowing the tuner to keep a close eye on the engines’ all important air/fuel ratio. The kit is supplied with a genuine Bosch 5 wire LSU 4.9 oxygen sensor (not a cheap Chinese copy as used by other wideband manufacturers), matched with a genuine Bosch self calibrating processor for accurate and repeatable air/fuel ratio measurement, which can be displayed in either air/fuel ratio or Lambda. For 2022, we have added a 0.9” OLED screen which displays the AFR in real time & also doubles as a diagnostic screen. The LSU 4.9 wideband kit features 3x different outputs, making it compatible with several different MicroTech products. 0-5v ECU output –For wiring directly to any “C” series MicroTech ECU Oxy sensor input CAN output –For connection to a MicroTech LTC dash display via the MicroTech CAN hub. USB Port –For connection to the laptop. To make troubleshooting easy, there is an LED status indicator on the front of the unit. Green (steady) = Power on Green (flashing) = Operational Amber = Sensor warm up Red = Sensor not connected CAN Speed & CAN ID is adjustable via the software making the unit compatible with most aftermarket ECU CAN protocols. The default wideband range is 0.65 Lambda (9.5:1 AFR) – Air LSU 4.9 Wideband with Display Screen Wiring Diagram
