by David Ferguson on Tue Feb 21, 2017 6:58 am
Idealy, the person supplying the harness would supply documentation showing the pinout, or perhaps the harness has a serial number and you can contact them to request the documentation.
If that isn't possible, the the usual course is to either look at the device configuration or simply reverse engineer the harness to discover what connector goes to what M800 channel -- this is a pretty common problem when taking over a project that someone else worked on.
So, when contacting a MoTeC dealer tell them what you have, who did the original work and offer to supply the device config and/or harness if they need it to verify the wiring.
Most temp sensors are two wires (variable resistance, either Negative Temperateure Coefficient, NTC or Positive Temperature Coefficient, PTC). If the wiring goes to a temperature input then only the signal and ground from the 3-pin connector will be used. if the input goes to an analog voltage input, then you typically need to add a precision pull-up resistor between the reference voltage and the signal wire. Again - a common problem that I would expect a dealer to be able to handle.
David Ferguson
Veracity Racing Data