Kia TSB #PS315
2011 Kia Optima
Affected Component: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS
- Summary
- PIT STOP: GDI INJECTOR SPRAY TIP DEPOSITS - A design feature of vehicles equipped with a Gasoline Direct Injection (GDI) system is the placement of each fuel injector directly into the engine cylinder head assembly. Therefore, it is completely normal for the combustion process to create deposits on the injector spray tip surfaces.