Brad's Car Manuals
: A 3rd party mirror of CHARM + LEMON car manuals
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Infiniti
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2004
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M45
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Repair and Diagnosis
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Engine Performance
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Engine Control System
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DTC P0506: ISC System
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Diagnostic Procedure
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1. Check Intake Air Leak
1. Check Intake Air Leak
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Start engine and let it idle.
Listen for an intake air leak after the mass air flow sensor.
OK or NG
OK: GO TO 2.
NG: Discover air leak location and repair.