Typical Story. Turboed the Car (99 civic si), removed the ac, now selling the car, and put the a/c back on. No mechanical problems up to this point. Drop the car off at the shop for a recharge, and air is ice cold. As i drive and stop, my rpms drop big, and my car starts bogging out sounding like its hitting and missing cylinders. So i shut the ac off and it still does it. I turn the ac on and i can hear the compressor clutch, going on, and off. I shut the car off, and turn it back on, its ok. So i shut it off again, and do it, and then it starts to do it again. Any help please.

 

compressor's about to go bad as it shuts on and off...I bet when you accelerate the car the compressor's good but when u come to a stop or idle the compressor starts shutting on and off by itself right?