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Nissan-Datsun
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2004
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Frontier Base, Automatic
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Repair and Diagnosis
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Engine Performance
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Engine Control System - KA24DE
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DTC P0171: Fuel Injection System Function
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Component Inspection
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Injector
Component Inspection: Injector
Disconnect all ignition coil harness connectors.
Place pans or saucers under each injector.
Crank engine for about 3 seconds. Make sure that fuel sprays out from injectors.
Fuel should be sprayed evenly for each cylinder.
Fig 1: Spraying Fuel On Cylinder
Courtesy of NISSAN MOTOR CO., U.S.A.