Operation CHARM
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Pontiac
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1988
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J2000/Sunbird L4-121 2.0L
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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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Engine Control Module
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Diagrams
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With VIN M, PFI, (Turbo)
With VIN M, PFI, (Turbo)
ECM Terminal ID and Voltage Specifications (Part 1 of 2):
ECM Terminal ID and Voltage Specifications (Part 2 of 2):