[Shotimes] Can someone help me a the position/location of the ECT?

[Randy & Nicole!]

Greetings,

On my '91 SHO, I'm trying to replace my ECT to solve a cooling problem, but I
can't find it.
(Symptoms:  Engine temp indicates ok on highway, but gradually goes to "N"
when idling.  Fan works when AC on.  And engine cools down when AC turned on.
Has new thermostat.)
I see a sensor at 7 o'clock when facing the thermostat flange approximately 1"
away from thermostat centerline.
But I think thats the one for the dash gage.

Can someone help me the position/location of the ECT?

Autozone said replacement part is "SU201", can anyone confirm this?

Thanks a ton!
rp
'91 SHO All Black