oldsmobile Workshop Repair Guides

Oldsmobile Workshop Service and Repair Manuals

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Electronic Spark Timing <--> [Electronic Spark Control Module]|Locations|Page 2025 > < Electronic Spark Timing <--> [Electronic Spark Control Module]|Locations|Page 2023

Custom Cruiser RWD V8-350 5.7L (1992)

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Electronic Spark Timing: Description and Operation

Wiring Diagram For ESC Circuit

Electronic Spark Control (ESC) is accomplished with a module that sends a voltage signal to the ECM. As the sensor detects engine knock, the voltage
from the ESC module to the ECM is reduced. This signals the ECM to retard the timing, if engine speed is over approximately 900 rpm.

Electronic Spark Timing <--> [Electronic Spark Control Module]|Locations|Page 2025 > < Electronic Spark Timing <--> [Electronic Spark Control Module]|Locations|Page 2023