The engine has now 60-2 trigger wheel and VR sensor with BMW sensor bracket. Delphi potentiometer style TPS is attached to the throttle body with an DIY adapter. I have also purchased a Bosch IAT sensor and a "Bosch blue" CLT sensor. I also have 14point7 wideband lambda with controller. So far only the wasted spark coils are missing, all other harware is available, more or less. This will be a naturally aspirated engine with no specialities, only additional fan control for A/C needs will be needed.
Just not to do anything stupid that may destroy the board, I have some questions (and will have in the future) to start with. These may be trivial, but I want to be sure to connect everything right. I had a MegaSquirt project ten years ago, very few memories from that available any more...
Let's start with the VR conditioner. Which is the correct installing orientation? The VR board has labels "Top" & "Bottom", if placed like in the picture, the connectors does not match the labeling on the main board. Or should they match at all?
After installing it correctly, how to connect the three wires from the VR sensor? The VR board has labels 5V, GND and Out1/2. Should I use the input on the main board connector? This is the most confusing part so far.
Also in the input connector there is a pin for 5V. Do I need to supply the board also with 5V? Or is that 5V output?