Operation CHARM
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Pontiac
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1986
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J2000/Sunbird L4-112 1.8L
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Repair and Diagnosis
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Relays and Modules
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Relays and Modules - Powertrain Management
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Relays and Modules - Computers and Control Systems
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Electronic Spark Control Module
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Testing and Inspection
Electronic Spark Control Module: Testing and Inspection
Fig. 6d ESC performance chart (1985-86 4-110/1.8L port injected models):
