Question

gdi injection systems run on fuel pressures as high as:

a. 35 - 70 psi
b. 241 - 482 psi
c. 3,000 psi
d. 20,684 psi

Explanation:

Gasoline Direct Injection (GDI) systems are designed to inject fuel directly into the combustion chamber. They operate at very high pressures to atomize the fuel effectively. The pressure range of 35 - 70 psi (option a) is typical for port - fuel injection systems, not GDI. The range 241 - 482 psi (option b) is much lower than what is required for GDI. 20,684 psi (option d) is an extremely high pressure that is not practical for automotive fuel injection systems. GDI systems commonly operate at pressures around 3,000 psi (option c) to ensure proper fuel spray and combustion efficiency.

Answer:

C. 3,000 psi