Spal fan Controller Help

[Pro-Tour Heavy Chevy]

Strange, My Spal PMW has 2 seperate pigtails on it for different sensors.
A 2-wire for the Spal sensor and a single wire for OE or Aftermarket sensors, like Stewart Warner or Autometer...ETC. I hooked mine up using the Stewart Warner sender and I use a seperate Spal relay kit for my second fan. Once it's all hooked up, run the engine to program the PMW.
The PMW fan is variable speed and the second is on-off. The set up works great and keeps the car cool