GMC Workshop Service and Repair Manuals > R 3500 P/U 2WD V8-454 7.4L VIN W 4-bbl (1988) > Powertrain Management | Relays and Modules - Powertrain Management | Relays and Modules - Computers and Control Systems | Electronic Spark Timing <--> [Electronic Spark Control Module] | Component Information | Testing and Inspection

Electronic Spark Timing <--> [Electronic Spark Control Module]|Testing and Inspection|Page 2362 > < Exhaust Temperature Sensor|Locations

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Electronic Spark Timing: Testing and Inspection

Chart C-5 - Electronic Spark Control System Check

Powertrain Management
Relays and Modules - Powertrain Management
Relays and Modules - Computers and Control Systems
Electronic Spark Timing <--> [Electronic Spark Control Module]
Component Information
Testing and Inspection

Electronic Spark Timing <--> [Electronic Spark Control Module]|Testing and Inspection|Page 2362 > < Exhaust Temperature Sensor|Locations