The Alfano Heated Lambda Probe LSU 4.9 measures the air-fuel ratio in exhaust gases to help you monitor and optimise your karts engine fuelling. It uses a Bosch LSU 4.9 broadband sensor with an integrated heater element and connects through an Alfano Controller Box (A2504) to an Alfano 7 or BOX12 expansion module to deliver real-time lambda readings once exhaust gas temperatures exceed 300°C.
The following features explain how this lambda probe measures exhaust composition and helps you refine engine tuning:
- Bosch LSU 4.9 Broadband Sensor Element: The probe uses the Bosch LSU 4.9 wideband oxygen sensor which measures lambda values across a broad air-fuel range, allowing you to monitor combustion mixtures at both low and high engine RPM so you can identify correct fuelling conditions and adjust carburettor jetting with accurate data from the exhaust stream.
- Integrated Sensor Heating Circuit: The LSU 4.9 sensor incorporates an internal heater that rapidly brings the sensing element to its operating temperature, allowing the probe to stabilise measurement accuracy and provide consistent lambda readings during engine operation which supports reliable fuelling adjustments during tuning sessions.
- Controller Box Integration (A2504): The probe connects to the Alfano Controller Box (A2504) which manages sensor control and signal processing before passing the lambda data to the Alfano 7 or BOX12 expansion module, allowing you to view measured air-fuel ratios within the Alfano data system for straightforward monitoring and logging.
- Black Port Connection Compatibility: The sensor connects via the A2504 controller to the black port of the Alfano 7 or through the BOX12 expansion module, providing a structured connection path that allows lambda readings to be displayed within the Alfano telemetry environment during engine operation.
- High Temperature Exhaust Gas Measurement Threshold: The sensor begins displaying lambda values once exhaust gas temperatures exceed 300°C which ensures the sensing element operates within its correct measurement range, allowing you to rely on stable exhaust gas readings during engine load conditions when accurate fuelling analysis becomes possible.
Accurate air-fuel monitoring helps you adjust fuelling with clear data from the exhaust system. The heated LSU 4.9 probe works with the Alfano controller and data system to present reliable lambda values once the engine reaches operating temperature. Adding this sensor to your engine monitoring setup provides a practical tool for tuning and analysing combustion behaviour in your vehicle.
Please note: A controller unit is required for connecting the sensor to an Alfano 7 dash. The correct controller can be found here.