HAC sensor?

[s383mmber1]

What does this do?

Is it nessacariy for a NA-T using GTE electronics?

Were is it located?


Searched and didn't come up with much!

Thanks Guys and Gals!

 

[johnathan1]

I really don't know how essential it is, but it is located on the glovebox support bar or whatever that thing is called...

 

[lagged]

pre 89 ECUs require it. 89+ ECUs have it built in.

 

[Kai]

HAC = High Altitude Compensation