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Home >> Infiniti >> 2021 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 5) >> Engine (ECM) >> DTC P0331: Knock Sensor >> DTC Description >> Possible Cause
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Possible Cause

Harness or connectors

(The knock sensor circuit is open or shorted.)

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