This service removes carbon and deposits from injectors, valves, and combustion chambers. Carbon deposits are the result of additives used in modern gasoline to keep them stable and burnable. These necessary chemicals leach out and form substantial collections of carbon, which need to be removed to ensure the proper performance and reliability of your vehicle. Fuel injection services are recommended for emissions, engine pinging problems, rough idle problems, hard starting, hesitation problems, and as general preventive maintenance.