p0171
Moderate
Nissan · SUVs
System Too Lean (Bank 1)
Quick Answer
Error code P0171 on your Nissan SUVs means: System Too Lean (Bank 1). This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Y62D23P15AZ50Armada Midnight Edition 2024Armada Platinum 2024Armada SL 2024Armada SV 2024Kicks S 2024Kicks SR 2024Kicks SV 2024Murano Platinum 2024Murano S 2024Murano SL 2024Murano SV 2024Pathfinder Platinum 2024Pathfinder Rock Creek 2024Pathfinder S 2024Pathfinder SL 2024Pathfinder SV 2024Rogue Platinum 2024Rogue Rock Creek 2024Rogue S 2024Rogue SL 2024Rogue SV 2024R51T32J12N50A
Likely Causes
How to Fix It
1
Connect OBD-II scanner to vehicle
2
Check fuel pressure readings
3
Inspect oxygen sensors for proper operation
4
Test mass airflow sensor readings
5
Inspect intake manifold for leaks
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Related Error Codes