Bosch Wideband Lambda Sensor LSU4.9

When using an aftermarket ECU, a wideband lambda sensor in place of the OE narrowband sensor, allows much more accurate measurement of fuelling across the full engine rev range. Many ECUs also provide a self-learn / auto-tune feature where a wideband is fitted, allowing fine tuning of the mapping whilst driving.

Genuine Bosch sensor sourced from a reputable supplier.  Correct installation, use, and control of these sensors is critical to ensure sensor life.  We cannot be held responsible for any failure of sensors not installed at our workshops.

Note: not all ECUs are direct plug compatible with wideband sensors.  Please check your specific type, or contact us for help.