Problems with coolant sensor

[Tidus05]

I just need to know where the Coolant/Antifreeze Sensor is located on a 89' Buick Regal Custom V6 - 2.8L - fuel injection.

If anyone knows,

if not, can anyone help me with a/c?

I have a/c but, it is blowing very little cold air, no matter if it is on high or medium.

if you have any suggestions about either or both, that would be very appreciated.

[tman]

It may be on the firewall side of the lower intake manifold, near the throttle body.

[Tidus05]

Thanks