After recent tuning and engine oil change , city exi 2003 drops rpm on low speeds and have to accelerate full pedal to run the car. Also when turn on AC, it cools little bit then minimal cooling and rpm again starts to drop and consuming much power to accelerate (engine starts to vibrate) and it also consuming too much patrol like 10km/litre.Even I have changed fuel pump and all spark plugs. What could be the reasons? Also please suggest any good mechanic in Lahore for EXI engine.
