Another outstanding job is to engineer some form of idle control actuator. The OMEX ECU is currently set to use 'spark scatter' which is better than nothing, but I'm looking for something better.

There are plenty of existing solutions out there, but once you weed out actuators that aren't suitable for throttle bodies it gets a bit harder. What I need is something that pulls on the throttle cable a few millimeters. Reliability and fail safe operation are right at the top of the list, which doesn't come easily if it involves levers, cams or gears.

It may be unconventional, but I'm going to try using MuscleWires. They are wires made of shape memory alloy, and they contract when heated using an electric current. The numbers look good for producing 2-3mm of movement with up to 20N of force. I'll obviously post more as I go......