Fuel Injection System - 2.3L MPFI: Description

The electronic fuel injection system is a pulse time, Multi-Point Fuel Injection (MPFI) system. On-board Electronic Engine Control (EEC-IV) system has Electronic Control Assembly (ECA) which receives inputs from engine and vehicle sensors to compute required fuel flow rate necessary to maintain prescribed air/fuel ratio throughout entire engine operational range.

The ECA controls fuel injectors to meter fuel quantity into intake ports. Injector "on" time is the only controlled variable in fuel delivery system.