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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 111 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0171: Fuel Injection System Too Lean - Bank 1 Or DTC P0174: Fuel Injection System Too Lean - Bank 2 >> Diagnostic Procedure (3.5L)

Diagnostic Procedure (3.5L)

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For fuel pressure release, see FUEL SYSTEM PRESSURE RELEASE in SYSTEM & COMPONENT TESTING article, for fuel pressure, see CHECKING FUEL PRESSURE in BASIC DIAGNOSTIC PROCEDURES article, for DTC P0102 or DTC P0103: MAF Sensor, see DTC P0102: MASS AIRFLOW SENSOR CIRCUIT LOW INPUT OR DTC P0103: MASS AIRFLOW SENSOR CIRCUIT HIGH INPUT , for injector circuit, see FUEL CONTROL in SYSTEM & COMPONENT TESTING article, for Injector gallery assembly removal, see FUEL SYSTEMS in REMOVAL & INSTALLATION article and for intermittents, see INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.

For diagnostic procedure, see Fig 1 - Fig 3 .

Fig 1: Identifying Diagnostic Procedure For DTC P0171 Or DTC P0174: Fuel Injection System Function (Steps 1-3 Of 9)
G00250759Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Identifying Diagnostic Procedure For DTC P0171 Or DTC P0174: Fuel Injection System Function (Steps 4-6 Of 9)
G00250760Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Identifying Diagnostic Procedure For DTC P0171 Or DTC P0174: Fuel Injection System Function (Steps 7-9 Of 9)
G00250761Courtesy of NISSAN MOTOR CO., U.S.A.
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