I have a Mitsubishi lancer (2002 model) with a 4G15 (CVT) GDI engine. Lately I have been experiencing some problems that seems very difficult to identify. When AC is off car works perfectly, but when AC is on car stutters, loses power and cuts off when stopped or slowed down. Checked coil packs, changed spark plugs, serviced throttle body, serviced air intake sensor etc. Still experienced same problems so mechanic said to check AC. Took car to AC guy, was told that AC is in perfect working condition. Then took it to an electrician who told me that the alternator was charging fine to take it back to mechanic. Does anyone know what the heck is wrong with this car?