A fuel injection system that uses a MAP sensor [manifold absolute pressure] to determine the amount of air entering the engine is called a _____-type injection system.
A)common rail
B)mass airflow
C)stoichiometric
D)speed density

Question

Quizplus · Accepted Answer

The speed density type injection system uses a MAP sensor to measure the manifold absolute pressure, which helps determine the amount of air entering the engine. This system calculates air density based on manifold pressure and temperature, rather than directly measuring the airflow like a mass airflow sensor system would.

A Fuel Injection System That Uses a MAP Sensor [Manifold