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Home >> Infiniti >> 2005 >> Q45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1211 To P2138 >> DTC P1491: Vacuum Cut Valve Bypass Valve >> Overall Function Check >> Notes

Overall Function Check: Notes

Use this procedure to check the overall function of vacuum cut valve bypass valve. During this check, the 1st trip DTC might not be confirmed.

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