Operation CHARM
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Saturn
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1997
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SL2 L4-1.9L DOHC VIN 7
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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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Component Tests and General Diagnostics
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System Diagnosis - Ignition/Spark Control
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Knock Sensor Circuit - Malfunction
Knock Sensor Circuit - Malfunction
For component testing, use P0327 trouble code diagnosis.
P0327