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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 P0171, P0174: Fuel Injection System Function
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Diagnostic Procedure
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8. Check Function Of Injectors
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Without CONSULT-II
Without CONSULT-II
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Start engine.
Listen to each injector operating sound.
Fig 1: Listening For Operational Sound
Courtesy of NISSAN MOTOR CO., U.S.A.
Clicking noise should be heard.
OK or NG
OK: GO TO 9.
NG: Perform trouble diagnosis for
INJECTOR CIRCUIT
.