MoTeC Knock OKM - Manual (Page 5)

MoTeC Installation 5
Installation
SKM
The SKM is connected between the OEM fitted knock sensor and a 'hundred
series' ECU – M400, M600, M800 or M880.
The SKM knock signal output must be connected to the ECU via an available
analogue voltage input, preferable a Lambda sense input. The Lambda sense
input has a slightly higher resolution.
To send the gated window signal to the knock module connect a spare
injector or ignition output on the M800 or M880 ECU to the SKM input. On the
M400 and M600, injector 8 output must be used.
Alternatively the SKM Tuning loom can be used (available separately)
See appendix 2 and 3 for detailed wiring instructions
OKM
The OKM is fitted directly onto the board of an M800 Plug-In ECU.
Most M800 Plug-In ECUs fitted with an OKM are pre-configured to analogue
voltage input AV5 and ignition output 6. WRX9/10 boards use lambda 1 sense
input rather than AV5.