My air conditioner quick working. Had 4 different shops look at it and all said same thing bad expansion valve. Today put on new shart air intake. All I did was disconnect battery, remove old intake, install new intake, hook up battery. Now my air conditioning seems to be working like it always has. Just ran in town and on highway for over an hour and a/c worked. Used to only work for few minutes. Any Ideas.

1991 honda civic SI