How do I get Lambda into my M4 Family ECU?

The M4, M4-8 and M8 used the Bosch LSM sensor, this sensor is now obsolete and unavailable.  There are some aftermarket copies of these available, but the quality level of these sensors varies quite a lot and cannot be considered reliable.

The only option available to get Lambda into the M4, M4-8 or M8 is to use the Analog signal from the MoTeC PLM, this also gives the option of using the Bosch LSU 4.0, 4.2 or 4.9 Lambda sensors, or the NGK NTK EUGO sensor.