AutoCodes – Ford – P0174 2011 Ford Fusion

P0174 2011 Ford Fusion Code - Fuel Injection System Too Lean Bank 2

Quick Answer

The adaptive fuel strategy continuously monitors the fuel delivery hardware. Common causes include Intake air leaks, Faulty front heated oxygen sensor, Ignition misfiring. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0174 2011 Ford Fusion indicates Fuel Injection System Too Lean Bank 2.
Common causes: Common causes include Intake air leaks, Faulty front heated oxygen sensor, Ignition misfiring.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 3,422

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 21, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0174 2011 Ford Fusion Description

The adaptive fuel strategy continuously monitors the fuel delivery hardware. The test fails when the adaptive fuel tables reach a rich calibrated limit

OBDII Code P0174 2011 Ford Fusion - Fuel Injection System Too Lean Bank 2 - AutoCodes.com — P0174 2011 Ford Fusion Code - Fuel Injection System Too Lean Bank 2

What does this mean?

What are the Possible Causes of the DTC P0174 2011 Ford Fusion?

Intake air leaks
Faulty front heated oxygen sensor
Ignition misfiring
Faulty fuel injectors
Exhaust gas leaks
Incorrect fuel pressure
Lack of fuel
Faulty Mass Air Flow (MAF) sensor
Incorrect Positive Crankcase Ventilation (PCV) hose connection

How to Fix the DTC P0174 2011 Ford Fusion?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

The codes is usually set when there is an intake leak after the air flow meter, before replacing any parts check for loose or broken hoses and intake gasket leak. On Ford some models dirty air filter, and dirty or faulty air flow sensor are the cause of the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0174 2011 Ford Fusion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0174 2011 Ford Fusion code?

Need more information on how to fix the P0174 2011 Ford Fusion code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0174 2011 Ford Fusion Code

1. What are the common symptoms of OBDII code P0174 (Fuel Injection System Too Lean Bank 2) in a 2011 Ford Fusion?

- Common symptoms include rough idling, lack of power, hesitation during acceleration, and an illuminated check engine light.

2. What are the possible causes of OBDII code P0174 in a 2011 Ford Fusion?

- Possible causes include a vacuum leak, faulty oxygen sensor, clogged fuel filter, fuel pump issues, or a malfunctioning mass airflow sensor.

3. How can I diagnose the cause of OBDII code P0174 in my 2011 Ford Fusion?

- Diagnose by checking for vacuum leaks, inspecting the oxygen sensor, testing the fuel pressure, examining the fuel filter, and examining the mass airflow sensor.

4. Can a dirty or clogged fuel injector cause OBDII code P0174 in a 2011 Ford Fusion?

- Yes, a dirty or clogged fuel injector can disrupt the air-fuel mixture ratio and trigger the P0174 code.

5. Is it safe to continue driving my 2011 Ford Fusion with OBDII code P0174 present?

- It is not recommended to drive with the P0174 code as it can lead to reduced fuel efficiency and potential damage to the engine over time.

6. How can I repair OBDII code P0174 in my 2011 Ford Fusion?

- Repair options include fixing vacuum leaks, replacing the oxygen sensor, cleaning or replacing the fuel filter, addressing fuel pump issues, or servicing the mass airflow sensor.

7. Will resetting the check engine light resolve OBDII code P0174 in a 2011 Ford Fusion?

- Resetting the check engine light may temporarily remove the warning, but the underlying issue causing the P0174 code will persist and should be addressed to prevent future problems.

8. Can extreme weather conditions affect the occurrence of OBDII code P0174 in a 2011 Ford Fusion?

- Extreme weather conditions such as very hot or very cold temperatures can impact the air-fuel mixture and potentially trigger the P0174 code.

9. How long does it typically take to repair OBDII code P0174 in a 2011 Ford Fusion?

- The repair time can vary depending on the specific cause of the P0174 code, but it may take anywhere from a few hours to a full day to diagnose and fix the issue.

10. Should I seek professional help to address OBDII code P0174 in my 2011 Ford Fusion?

- If you are unsure about diagnosing or repairing the issue causing the P0174 code, it is recommended to seek the help of a qualified mechanic or technician to ensure the problem is properly resolved.