Which of the following statements regarding the usage of a fuel pressure gauge is true?
A)Typical fuel pressure for a fuel injection system is 100 to 150 psi.
B)A drop in fuel pressure results in a rich air/fuel mixture.
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

Typical fuel pressure for a fuel injection system is usually in the range of 35 to 65 psi, not 100 to 150 psi. A drop in fuel pressure would result in a lean air/fuel mixture, not a rich one, because there would be less fuel relative to air being delivered to the engine.

Which of the Following Statements Regarding the Usage of a Fuel