Operation CHARM
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Pontiac
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1990
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J2000/Sunbird L4-121 2.0L
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Scan Tool Testing and Procedures
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Throttle Body Injection (TBI)
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Typical Scan Data Values
Typical Scan Data Values
Scan Tool Data (Typical):