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5 – Installing the probe and LCU-One CAN lambda controller
Bosch LSU 4.9 Lambda probe must be installed on the exhaust pipe welding the bung supplied with the kit or using an existing thread.
Install the probe close to the engine, avoiding its cable to be in contact with heat sources and the pipe.
The probe working temperature must not exceed 900°C (1652°F) nor be exposed to the free flame coming out of the engine. The lambda
sensor should be installed at a point that permits the measurement of a representative exhaust-gas mixture, which does not exceed the
maximum permissible temperature but is as hot as possible.
It is recommended to install the sensor vertically (wire upwards), this will protect the sensor against condensation water; should this not
be possible, maintain a minimum of 10 degrees of tilt (right image below).
The sensor is not to be fitted near to the exhaust pipe outlet, so that the influence of the outside air can be ruled out. The exhaust-gas
passage opposite the sensor, must be free of leaks to avoid the effects of leak-air.
Install the LCU-One CAN module adopting anti vibrating devices, like rawl nuts or neoprene mats. The module carries two M3x10mm
fixing holes. Avoid the module to be exposed to high temperatures, this must not be placed in proximity of the exhaust pipe, if the module
has to be located in the engine bay, choose a vented position far from heat parts.
