Is it enhanced? That adjustment range is about right, but it shouldn't be opening back up if you go below the lowest...maybe if you go 10-20% lower and it swings the valve back around and opens up a bleed.

Yes it is. That's how i figured out it would go and wondered if it was the same with your car. Anyways, the thing has not caused any problems to me. Let's get back to the topic :)

does the 96-97 TB have its own air valve that opens more at low temps? that's the only thing I can think. I found no leaks, and it runs fine, its just odd the me to see lower idle duties when cold and higher rpm than when warm and lower RPMs.


Otherwise with just using "last know" and PID EGO at idle, car is running great.