LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chrysler >> 1981 >> Imperial >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Combustion Control Computer >> Description >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Combustion Control Computer: Description: Notes

The Combustion Control Computer (CCC) system is used on Imperial models with Electronic Fuel Injection. The computer controls the EFI system, spark timing and advance, idle speed, air injection switching and fuel evaporation purging.

The system is capable of self-calibration to compensate for changes in altitude or barometric pressure. It also has safety features that enable it to shut down the fuel supply pump if the engine stalls or will not start after prolonged cranking.