2.2L Electronic Fuel Control: Description
NOTE:
Dakota uses the Spark Control Computer with Spark Advance and Throttle Control systems. Only models with Holley 6520 carburetors use oxygen sensor feedback system.
The Electronic Spark Advance (ESA) and Electronic Fuel Control (EFC) systems are electronically controlled systems that closely control ignition timing and air/fuel ratio. The Spark Control Computer (SCC) is the heart of the system.
The SCC provides the capability of igniting a lean air/fuel mixture under various engine operating conditions. Also, during closed loop operation on models with feedback system, the computer maintains an air/fuel ratio close to the ideal 14.7:1.