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Nissan-Datsun
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2004
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Quest SL
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System
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DTC P0128: Thermostat Function
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DTC Confirmation Procedure
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Testing Condition:
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Notes
Testing Condition:: Notes
For best results, perform at ambient temperature of - 10° C (14°F) or higher.
For best results, perform at engine coolant temperature of - 10° C (14° F) to 60° C (140° F).