I didn't write a thorough enough explanation of what I had in mind. I was going to rewire the input signals on the second fan relay so it is triggered when the cooling pump comes on, not from its original input from the PCM - and hence will have nothing to do with the actual
engine coolant system.
With this re-wire concept, if the HE pump is running, the fan will also be running. Just a concept for now - I'm looking over the wiring schematics to see how big of a headache it will be to re-wire the second fan relay. Either way, I will end up with a relay that will be triggered by the HE pump - I think that is the best trigger to turn on the HE fan.
One thing I haven't figured out yet is what "COOL SER/PAR Relay" is for... I need to confirm that is or isn't needed for the primary fan to work. The ground on this diagram has effectively been removed from the way we are wiring up the primary fan on the Goblin, so my thinking is that it isn't necessary...please correct me if I'm off...
I would like to be able to take the wire highlighted in yellow and connect it to the input signal for the HE pump and get the second fan to run off that... The other connection second connection from COOL SER/PAR Relay, I need to figure that one out, too...maybe just a disconnect...