I am facing a strange problem with my city 2005 manual transmission. When its in idol state, and i switch on the AC it works fine, but when i accelerate it and leave the accelerator, the rpm drops to zero and the car engine stops. Same is true while driving, AC is doing excellent cooling while driving but when i have to stop or press the clutch to shift the gear and lift up the foot from accelerator it does not maintain the rpm and drops it to zero and engine stops then i have to restart. any expert can guess the problem. I spent one whole day with electricians (two different) but could not get the problem solved.