LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1990 >> Festiva L >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Control Unit
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Control Unit

Assorted switches and sensors provide the Electronic Control Assembly (ECA), with engine operating information required for accurate fuel control. Based on information received, the ECA attempts to control the air/fuel ratio at 14.7:1; the optimum ratio for reduced exhaust emissions. The ECA also controls some functions of the evaporative emission, ignition and deceleration systems.