Water methanol systems usually consist of simply a 12V pump that when triggered by the Water Methanol Settings is then energized. The metering of the methanol is controlled by the chosen nozzle size in the pipework.


Wire as per below, using a relay to drive the pump to avoid over-current loading the outputs. Any LS (including PWM, Relay or Injector) output can be used, and its mapping in IO settings should be set to "Water Inj.".