a/c problem, 3sge swap a/c Options

[99gt3sge]

well before i swapped my 3s my a/c was working nice but the compressor was making noise, so naturally when i swapped i used the jdm compressor and ever since then i charged the system and now only works when the car is cold or when i'm on the highway. on stop and go it stops working have any of you guys experience this? the only thing I'm guessing that the compressor that i'm using might be for r12 and my car uses 134 since it's a 99.

[VavAlephVav]

I'm going to say that if the compressor on the 3s was working in the first place it doesn't necessarily matter if it was for r12 or not. at least for a while it should work fine, the pressures the system operates at are close to the same but the different kind of oil used in R134a will eventually ruin it.
for that matter when you charged it did you put any oil in? it circulates throughout the system with the refrigerant and only a little of it stays in the compressor.
otherwise can you tell if the compressor is cycling on and off repeatedly? if you get out of the car and watch it you would hear the click and see the clutch on the compressor stop and go. like when it's low on refrigerant there is a low-pressure cut out switch(connector on pipe near firewall) that will stop the compressor from running below a certain point.
up in the front near the bottom of the radiator (battery side) is the liquid filter/dryer, it has a sight-glass window so you can see what the refrigerant is doing. if you look and see a solid stream of liquid you are good, if its low or there is a blockage you will see bubbles in the refrigerant.
Also did You charge it or did you have somebody else do it? Did you pull a vacuum on the system before charging the refrigerant and oil? do you have a manifold to see the pressure on both sides of the system?
The pressure doesn't matter really except that we use it to know the Temperature of the coils. The low side(blue) gage should be around 35psi which is 40 degrees, and the red gage should be at a temperature that is about 30 degrees hotter than it is outside. like on a 90 degree day it would be 120 degrees which is 171 psi for r134a, although it often may be higher than that if you're sitting still.
on recirculate the temperature of the air coming out of the vents inside should be not higher than 55 degrees.

This post has been edited by VavAlephVav: Aug 27, 2014 - 7:21 PM