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Engine-Codes – Infiniti – P0174 2006 Infiniti G35

P0174 2006 Infiniti G35 Code - Fuel Injection System Too Lean Bank 2

Quick Answer

The P0174 code for a 2006 Infiniti G35 indicates that the fuel injection system on Bank 2 is running too lean. Common causes include Vacuum leak, Faulty oxygen sensor, Clogged fuel filter. 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 2006 Infiniti G35 indicates Fuel Injection System Too Lean Bank 2.
Common causes
Common causes include Vacuum leak, Faulty oxygen sensor, Clogged fuel filter.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 27, 2024
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Code P0174 2006 Infiniti G35 Description

The P0174 code for a 2006 Infiniti G35 indicates that the fuel injection system on Bank 2 is running too lean. This means that there is an imbalance in the air-fuel mixture being delivered to the engine on the side of the engine where Bank 2 is located. In a V6 engine like the one in the Infiniti G35, Bank 2 typically refers to the side of the engine that does not contain the number 1 cylinder.

OBDII Code P0174 2006 Infiniti G35 - Fuel Injection System Too Lean Bank 2
P0174 2006 Infiniti G35 Code - Fuel Injection System Too Lean Bank 2

Common Causes of P0174 2006 Infiniti G35

  1. Vacuum leak
  2. Faulty oxygen sensor
  3. Clogged fuel filter
  4. Malfunctioning mass airflow sensor
  5. Problem with the fuel injectors

Symptoms of P0174 2006 Infiniti G35

  1. Rough idle
  2. Hesitation or stumbling during acceleration
  3. Reduced fuel efficiency
  4. Engine misfires
  5. Engine stalling

How to Fix P0174 2006 Infiniti G35

  1. Perform a visual inspection of the vacuum lines and intake manifold for any signs of leaks. Repair or replace any damaged components.
  2. Test the oxygen sensor on Bank 2 to ensure it is functioning properly. Replace if necessary.
  3. Replace the fuel filter to ensure proper fuel flow to the engine.
  4. Test the mass airflow sensor to determine if it is reading accurately. Clean or replace as needed.
  5. Inspect the fuel injectors on Bank 2 for clogs or malfunctions. Clean or replace as necessary.

Cost to Fix P0174 2006 Infiniti G35

The cost of repairing a P0174 code on a 2006 Infiniti G35 can vary depending on the specific cause of the issue. In general, the cost of parts for this repair could range from $100 to $500, with labor costs adding an additional $100 to $300. This would bring the total cost of the repair to between $200 and $800. However, it's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

What does this mean?

Tech Notes for P0174 2006 Infiniti G35

If the P0171 is combined with the P0174 code, it's very likely that the problem is 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.

When is the Code Detected?

- Fuel injection system does not operate properly.
- The amount of mixture ratio compensation is too small. (The mixture ratio is too lean.)

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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 2006 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0174 on a 2006 Infiniti G35?

The common symptoms of OBDII code P0174 on a 2006 Infiniti G35 include rough idling, misfiring, loss of power, and an illuminated check engine light.

2. What does the OBDII code P0174 indicate on a 2006 Infiniti G35?

The OBDII code P0174 on a 2006 Infiniti G35 indicates that the fuel injection system on bank 2 is running too lean, meaning there is an imbalance of air and fuel mixture.

3. What are the possible causes of OBDII code P0174 on a 2006 Infiniti G35?

Possible causes of OBDII code P0174 on a 2006 Infiniti G35 include a vacuum leak, faulty oxygen sensors, fuel system issues, intake manifold leaks, or a malfunctioning mass airflow sensor.

4. How can I diagnose the OBDII code P0174 on my 2006 Infiniti G35?

To diagnose OBDII code P0174 on a 2006 Infiniti G35, you can perform a visual inspection for leaks, check the oxygen sensors and mass airflow sensor, inspect the fuel pressure and injectors, and scan for any other related trouble codes.

5. Can I continue driving my 2006 Infiniti G35 with OBDII code P0174?

It is not recommended to continue driving your 2006 Infiniti G35 with OBDII code P0174, as running too lean can cause damage to the engine and result in poor performance and fuel economy.

6. How can I repair OBDII code P0174 on my 2006 Infiniti G35?

To repair OBDII code P0174 on a 2006 Infiniti G35, you may need to address any vacuum leaks, replace faulty oxygen sensors or mass airflow sensor, clean or replace clogged fuel injectors, or fix any other issues causing the lean condition.

7. Will resetting the check engine light fix OBDII code P0174 on my 2006 Infiniti G35?

Resetting the check engine light may temporarily clear the code, but it will not fix the underlying issue causing OBDII code P0174 on your 2006 Infiniti G35. It is important to diagnose and repair the root cause of the problem.

8. How much does it cost to repair OBDII code P0174 on a 2006 Infiniti G35?

The cost to repair OBDII code P0174 on a 2006 Infiniti G35 can vary depending on the specific cause of the issue and the labor rates in your area. It is advisable to get a diagnostic assessment from a qualified mechanic for an accurate estimate.

9. Can a DIY enthusiast fix OBDII code P0174 on a 2006 Infiniti G35?

While some DIY enthusiasts may be able to address simpler causes of OBDII code P0174, such as checking for vacuum leaks or replacing oxygen sensors, more complex issues may require professional expertise and specialized tools.

10. How often does OBDII code P0174 occur in a 2006 Infiniti G35?

OBDII code P0174 can occur intermittently or persistently in a 2006 Infiniti G35, depending on the severity and frequency of the underlying issue causing the fuel injection system to run too lean on bank 2.

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