BG Fuel Injection & Combustion Chamber Cleaner PN 201 BG Fuel Injection & Combustion Chamber Cleaner is an especially effective gasoline direct injection system cleanup product.High pressure, high heat, gasoline direct injection engines demand spotlessly clean combustion chambers and fuel injectors to function efficiently. Just a small amount of carbon deposit buildup in the fuel injection system can have a substantial effect on drivability. Most fuel injection system cleaners are not designed for rock hard combustion chamber deposits.The BG VIA installs BG Fuel Injection & Combustion Chamber Cleaner through the fuel rail where it can perform the quickest, most thorough cleanup of fuel injectors and combustion chambers.BG Fuel Injection & Combustion Chamber CleanerRestores power and efficiencyLowers harmful emissionsSmooths idleAs part of the BG Fuel System Service, it pre-soaks deposits allowing BG Platinum 44K to provide an even more effective cleanup.Includes a Smilyeez pocket screwdriver