I know this is not OEM but after blowing a brand new TDM due to a solenoid issue I thought I would try something different. (I fixed the solenoid first) I used two 24v relays to supply a ground signal to the solenoid valve when either the temperature sensor or wot kick down sensor is energized. Diagram below. Seems to work ok and the only thing I am missing is the time delay function after wot activation but I think I can live with that for a $7 fix. During testing it seems to work ok but any thoughts on this? Like will it kick on and off too frequently with the temp sensor reading? It is too cold now to get the temp sensor to kick on and off.
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