LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 1989 >> Seville Base >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> DFI Theory/Operation >> Description >> Closed Loop Fuel Control Operation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Closed Loop Fuel Control Operation

Closed loop fuel control maintains an air/fuel ratio of 14.7:1 whenever possible. Oxygen sensor monitors oxygen content of exhaust gases, sending information to ECM. The ECM then corrects air/fuel mixture for deviations from ideal ratio.

scientia non olet · About LEMON Manuals