How is Carbon Deposit Formed?

[OAdriana]

Carbon deposits primarily result from incomplete combustion of fuel in the engine or non-combustible paraffin and gum substances in gasoline. These residues remain in components such as fuel injectors, throttle valves, fuel lines, and spark plugs, transforming into carbon deposits under high temperatures. Symptoms of carbon buildup in the vehicle's intake system include: elevated idle speed, abnormal idle vibration, poor acceleration response, increased fuel consumption, and excessive exhaust emissions. During engine operation, sticky residues produced by incomplete combustion of the air-fuel mixture form carbon deposits that adhere around the cylinder head and spark plugs, impairing normal cylinder function and reducing engine performance.