Thermostat housing sensors?

[rodney007]

Now I'm guessing one of these is a temperature gauge sensor, and one will be some kind of cold start sensor, and no idea what the others do, are they needed?

What to do with them when using an adapter and an in-line thermostat?...



On another note, can I simply by-pass these? unnecessary cooling/heating.

[Lunacy]

IIRC theres a temp gauge sensor which is a 1 pin one, an ecu sensor which is bigger, an aircon sensor, and the last 1 is cold start( i think).
I bypassed the throttle body coolant lines on my old evo with no problems, so would assume that one would be the same.

[rodney007]

So do you have something made up to put these into ?

[Lunacy]

Im using Wantsom's remote adaptor off the head, which has the ecu temp sender in it (out of a v6 commodore as my ecu has calibration file for it already), then running pipe under inlet manifold to a toyota 4-AC remote thermostat housing, which will have the water temp gauge sensor in it.
Im not running a heater so have bypassed the cabin heater hoses.