What's the matter with great jitter, high fuel consumption and insufficient power of Great Wall c50 engine?

Hello, my friend, your car has traveled tens of thousands of kilometers. If you drive more than 30,000 kilometers, you need to clean up the carbon deposits in the air intake, throttle and nozzle, which will definitely reduce fuel consumption. Because there is too much carbon deposited in this air inlet, the engine power will drop and the idle speed will shake. I hope my answer can help you. Please feel free to contact me if you have any questions. BBA Mercedes-Benz BMW Audi Maintenance Center wishes you a happy life, all the best and rolling financial resources!