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Mazda
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1997
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Protege DX L4-1489cc 1.5L DOHC MFI
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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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Symptom Related Diagnostic Procedures
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Symptom Charts
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Knocking
Knocking
NOTE:
Before overhauling cylinder head, pour carbon removing agent into plug hole and check if symptom improves.
