Hello! I recently had my car serviced at a shop to fix the ac. Now the A/C blows cold, compressor was replaced, but when I stop at a light or sit at a stop light, the engine putters and dies. It is a manual transmission, so when I downshift, it also idles low and has died while moving...It restarts immediately though. The engine only does this when I turn the A/C on though, and when it is off, it has no effect on the engine, and the car runs great. I have checked the cleanliness of the throttle body, and the air filter, both of which are clean. I have been told that the previous owner had the car tuned with a BAMA tune. Any ideas or suggestions would be very helpful.