LCU-ONE is a lambda controller unit for wide band BOSCH LSU 4.9 lambda probe; it fits petrol (2 and 4 strokes), diesel and methane engines as well as alcohol based fuel engines. It is intended to check lambda probe proper working as well as to transmit the Air/fuel ratio values providing MXL/EVO3 with lambda values through the CAN bus.
The LCU-ONE Analog is a lambda controller unit designed for wide‑band BOSCH LSU 4.9 probes and compatible with gasoline, diesel, methane, and alcohol‑based engines. It monitors air‑fuel ratio and transmits lambda values to MXL/EVO3 via CAN bus, while managing probe heating to keep the sensor in its optimal temperature range.
The manual covers mounting the controller and probe, wiring guidelines, software configuration with the Lambda Configurator, firmware updates, pin‑out diagrams, and part numbers. Safety warnings, probe temperature limits, and troubleshooting steps are also included.
| Lambda detection range | 0.65 – 1.6 |
|---|---|
| Maximum probe temperature | 900 °C |
| Analog output voltage at Lambda 0.65 | 1.95 V |
| Analog output voltage at Lambda 1.6 | 4.8 V |
| Device ID number | 1002225 |
| Firmware version example | 25.10 |
| Maximum power harness length | 100 cm |
It can detect lambda values from 0.65 to 1.6.
Connect the unit to a PC, open the Lambda Configurator, press the “Upgrade Firmware” button and confirm the update.