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Electronic Spark Timing <--> [Electronic Spark Control Module]|Description and Operation|Page 1970 > < Exhaust Manifold|Specifications|Page 1963

Roadmaster Estate Wagon V8-305 5.0L (1991)

  • Powertrain Management
  • Relays and Modules - Powertrain Management
  • Relays and Modules - Computers and Control Systems
  • Electronic Spark Timing <--> [Electronic Spark Control Module]
  • Component Information
  • Description and Operation

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Electronic Spark Timing: Description and Operation

ESC Wiring Diagram

The Electronic Spark Control (ESC) system module sends a voltage signal (8 to 10 volts) to the ECM when no spark knocking is detected by the ESC
knock sensor, and the ECM provides normal spark advance. When the knock sensor detects spark knock, the module turns "OFF" the circuit to the ECM
(0 volts). The ECM then retards EST to reduce spark knock.

  • Powertrain Management
  • Relays and Modules - Powertrain Management
  • Relays and Modules - Computers and Control Systems
  • Electronic Spark Timing <--> [Electronic Spark Control Module]
  • Component Information
  • Description and Operation

Electronic Spark Timing <--> [Electronic Spark Control Module]|Description and Operation|Page 1970 > < Exhaust Manifold|Specifications|Page 1963