what is gdi engine

Gasoline Direct Injection (GDI) is a fuel delivery system for gasoline internal combustion engines. It is a mixture formation system where fuel is injected into the combustion chamber, which is distinct from manifold injection. GDI engines work by injecting fuel at high pressure directly into the combustion chamber, which is far more precise than other fuel delivery systems. The first GDI engine was introduced in 1925 for a low-compression truck engine, and several German cars used a Bosch mechanical GDI system in the 1950s. However, usage of the technology remained rare until an electronic GDI system was introduced in 1996 by Mitsubishi for mass-produced cars. GDI equipped vehicles are more powerful, economical, and responsive throughout the full range of possible driving conditions. GDI systems are also particularly effective on two-stroke gasoline engines, hence eliminating the efficiency and pollution issues associated with conventional two-stroke designs. However, GDI engines have some drawbacks, such as high rates of fuel system clogging and engine carbon buildup, which can cause loss of power and engine stalling. It is important to know how GDI engines work and what their faults are so that you can prevent and/or deal with these issues head-on.