My Air Conditioning has been acting up. The A/C work fine when engine is cold but after it reaches temp the A/C will cut out but the compressor is still operating. After a while it will come back and blow as cold as 28° sometimes. Other times it won't come back until the engine is cold. The refrigerant is full, fuses are all good, thermal limiter on the compressor is fine. However when the A/C cuts out there is no power at the plug that is located just above the alternator. When unpluged it cuts the fans and the compressor. Plug it back in and the fans and compressor come back on but no cold air from the vents. I noticed that when it's working and the car is at idle and the compressor kicks on the car shutters a little almost like it us going to stall but quickly corrects and is fine. When the A/C stops working the car doesn't do this. Any ideas? Thanks. Again it's a 2008 EX Coupe