on my 2004 10.8 VVT MX5 (Miata) engine, there is a 2 pin idle control valve. One pin gets 12V, the other is connected to pin 37 of my Speeduino 0.4.4 board as it should. I measured the connections, they are correct. But the valve does not operate. Now I suspect there is something wrong in pin numbering, but I don't know what to do.
On the schematic, pin 37 of the board connects to CPU-D7 of the Arduino Mega. In the V04 wiki it says Idle 1 is IDC pin 37, Arduino Mega pin 5. In the I/O summary in TunerStudio is says the idleUpPin is 36. And it's greyed out, I cannot change it. So I need to change the pin numbers somewhere, but where (and therfore to what) I cannot figure out.