The Link Wideband O2 Sensor (LSU4.9) is designed to accurately measure exhaust oxygen content across a wide air-fuel ratio range. When used with a compatible Link ECU or external wideband controller, it provides fast and accurate lambda feedback for precise fuel tuning, closed loop fuel control and engine protection.

• Link ECUs with onboard wideband lambda control.

• Link CAN Lambda module (PN 125-1000).

• Other aftermarket ECUs and lambda controllers supporting Bosch LSU 4.9 sensors.

• This sensor is sold solely for aftermarket use. As Bosch's warranty excludes aftermarket applications, no warranty is provided on the LSU 4.9 Sensor.

• LinkECU have prepared some information about how to increase sensor lifespan below.

• Install where the sensor is exposed to a representative exhaust gas sample.

• Install as close to vertical as practical with the wiring facing upwards.

• Do not install near the end of the exhaust where fresh air may affect readings.

• Protect the sensor from condensation and excessive exhaust temperatures.