I think I'll leave the fan on via ignition because after 15 minutes of doing anything it comes on anyway.
A real neat note that the car will overheat doing under 25 mph and over 50 mph without the fan. More air! More cooling! Wrong. And there are no mechanical problems with the engine. Even down to combustion leak, radiator tube cleanliness, new water pump halves. ECU malfunction, cap, pressure testing, temperature readings verification. The car is a snotrag cooling system wise.
But I need a 210F - 215F sensor, two wire switch for an in-cab audible alarm. I have caught too many errors, both failures and human leaving me stranded. I don't want to blow the heads off that engine. I am also getting a new backup fan motor and stowing it.
