Auto Air Conditioning & Heater Repair: a/c doesnt work, olds cutlass ciera, electrical schematics

Question
The a/c system in my car (1990 Olds Cutlass Ciera 3.3 V6) stops working, and makes noisy sound. I have the a/c compressor changed, and the noise is gone but the a/c still doesn’t work. The clutch on the compressor kicked on and off frequently. I short circuited the pressure sensor, and the clutch kicked on for a longer time but still kicked off after about five minutes. The thinner line connected to the radiator does feel cold, but the air blown out doesn’t feel cold at all. Are there any other sensors that control the a/c compressor? Could you give me the electrical schematics and diagnostic procedures, and the location of other sensors? How to change the presure sensor?
Thanks

Answer
If you want to fix your a/c I advise you to get the pressure readings from the a/c while the compressor is on first.
You need to know symptoms and components function from service gauge readings. Low side readings with a/c compressor on should be 20-30psi and high side 180 to 210psi.

Good luck,davidt