P0174 Ford Maverick
System Too Lean (Bank 2) · Powertrain Code · High · Repair: Moderate
What is P0174?
The engine is running lean on bank 2. Same causes as P0171 but affecting the opposite cylinder bank on V-engines.
When the Ford Maverick triggers code P0174 (system too lean (bank 2)), it typically points to an issue in the powertrain system. This is a high severity code, so address it promptly to avoid further damage or safety concerns. Below you'll find the most common causes, symptoms, and repair options specific to the Ford Maverick.
This repair is rated moderate, meaning some experience and specialty tools required.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your Ford Maverick.
Common Causes on Ford Maverick
- Cracked intake boot on 2.0L EcoBoost
- PCV valve failure in valve cover assembly
- Vacuum leak at intake manifold gasket
- Mass airflow sensor contamination
- Fuel injector carbon deposit buildup
Symptoms
- Rough idle especially when cold
- Hesitation or stumble on acceleration
- Engine surging at steady throttle
- Lean misfire under load
- Poor fuel economy
- Check engine light illuminated
Notes for Ford Maverick
P0174 is uncommon on 4-cylinder Maverick models as they only have one bank. The 2.0L EcoBoost is an inline-4 that only sets P0171.