My 87 na runs just fine when the AC is off. It idles at about 800. When I turn the AC on, however, the idle drops to about 300. How do I test and or readjust my BAC to compensate for this? Since last year I have de-evolved my emmisions system to almost nothing. That has me thinking its a setting problem. I had to readjust every other damn thing on my car to get it running the way I wanted. Thanks in advance.

 

if you put power and ground to the bac valve it should click. do the 86-88's have an air supply valve? on the gsl-se and t2's thats what does the ac idle up



mike