Took my car for a run today.
With the switched in used AAV.
It did work.
But only because I was parked ,engine running, as I took photos.
As temperature gauge got above 85* I noticed revs reducing. At 90* it stalled and wouldn't restart.
Until I remembered and backed off the idle screw half a turn.
So the AAV does work but not under normal driving.
As in normal driving I've never seen temp gauge get above 80*.

Some one earlier mentioned altering it by squeezing sensor.
Anyone done this? How and how much?
Thanks.

Thinking. ...... even if you have a good working AAV , it may be worth squinting a bit of WD40 in every now and then.