P0171 2009 NISSAN ROGUE - Fuel Injection System Too Lean Bank 1
P0171 2009 NISSAN ROGUE Causes
P0171 2009 NISSAN ROGUE NotesIt is very common for P0171 to be caused by an intake leak. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. If the problem persists the front oxygen (O2) sensor may need to be replaced.
First diagnose P0171 2009 NISSAN ROGUE code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the P0171 2009 NISSAN ROGUE code
Labor: 1.0The cost of diagnosing the P0171 2009 NISSAN ROGUE code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
P0171 2009 NISSAN ROGUE Symptoms
P0171 2009 NISSAN ROGUE More InformationNeed more information on how to fix the P0171 2009 NISSAN ROGUE code?
Get Access to Factory Service Manuals
P0171 2009 NISSAN ROGUE DescriptionWith the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the heated oxygen sensors 1. The Engine Control Module (ECM) calculates the necessary compensation to correct the offset between the actual and the theoretical ratios.
In case the amount of the compensation value is extremely large (The actual mixture ratio is too lean.), the ECM judges the condition as the fuel injection system malfunction and light up the MIL (2 trip detection logic).