Toyota Tacoma
P0171
The P0171 code indicates a "System Too Lean (Bank 1)" condition in a 2016-present Toyota Tacoma N300. This means the engine is running with an excessively lean air-fuel mixture on bank 1, which can lead to performance issues and increased emissions.
42 SolutionsP-CodePowertrain
P
Error Code Type
Powertrain
Components
2 affected
EngineFuel System
Symptoms
10 common
- •Check engine light illuminated
- •Rough idle or stalling
- •Loss of power during acceleration
- +7 more
Most Affected Generations
1 generation
N300
42
Top Affected Components
2 components
Engine
40
Fuel System
2
Severity Levels
2 levels
high
27
medium
15
Quick Facts
42
Total Solutions
2
Affected Components
10
Common Symptoms
1
Generations
All Solutions
Showing 42 of 42 solutions for error code P0171 across all generations.