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Section 1164 (Engine Control System - QG18DE)
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DTC P0171: Fuel Injection System Function
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Wiring Diagram
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DTC P0171: Fuel Injection System Function: Wiring Diagram
WARNING:
This page is about a different car, the 2004 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Wiring Diagram (EC-FUEL-01)
Courtesy of NISSAN MOTOR CO., U.S.A.