P0174 2010 Nissan Altima Sedan Code - Fuel Injection System Too Lean Bank 2
Quick Answer
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the heated oxygen sensors 1. 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 2010 Nissan Altima Sedan 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.
Code P0174 2010 Nissan Altima Sedan Description
In case the amount of the compensation value is extremely large (The actual mixture ratio is too lean.), the ECM judges the condition as the fuel injection system malfunction and light up the MIL (2 trip detection logic).
What are the Possible Causes of the DTC P0174 2010 Nissan Altima Sedan?
- 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 2010 Nissan Altima Sedan?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0174 2010 Nissan Altima Sedan 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 2010 Nissan Altima Sedan code?
Need more information on how to fix the P0174 2010 Nissan Altima Sedan code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0174 2010 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0174 2010 Nissan Altima Sedan Code
1. What are common symptoms of OBDII code P0174 in a 2010 Nissan Altima Sedan?
- Common symptoms include rough idling, loss of power, poor fuel efficiency, and potentially a check engine light.
2. What does the OBDII code P0174 "Fuel Injection System Too Lean Bank 2" mean for a 2010 Nissan Altima Sedan?
- This code indicates that the engine is receiving too much air and not enough fuel on the second bank of cylinders.
3. What are some possible causes of OBDII code P0174 in a 2010 Nissan Altima Sedan?
- Causes can include a vacuum leak, faulty oxygen sensor, clogged fuel filter, malfunctioning fuel injectors, or a dirty mass airflow sensor.
4. How can I diagnose the OBDII code P0174 in my 2010 Nissan Altima Sedan?
- You can diagnose this code by checking for vacuum leaks, inspecting the oxygen sensor, testing the fuel pressure, and cleaning or replacing the mass airflow sensor.
5. Are there any quick fixes or temporary solutions for OBDII code P0174 in a 2010 Nissan Altima Sedan?
- While there may be temporary improvements from using fuel system cleaners or resetting the code, it's essential to address the root cause for a lasting repair.
6. Is it safe to continue driving my 2010 Nissan Altima Sedan with OBDII code P0174?
- It's not recommended to drive for an extended period with this code as it can lead to engine damage and further issues if left unresolved.
7. How much does it typically cost to repair OBDII code P0174 in a 2010 Nissan Altima Sedan?
- The cost of repair can vary depending on the exact cause, but it may range from a simple fix like tightening a hose clamp to more involved repairs like replacing sensors or filters.
8. Can I reset the OBDII code P0174 in my 2010 Nissan Altima Sedan by disconnecting the battery?
- While disconnecting the battery may clear the code temporarily, it's crucial to address the underlying issue to prevent the code from reappearing.
9. Will OBDII code P0174 cause my 2010 Nissan Altima Sedan to fail an emissions test?
- Yes, this code can cause your vehicle to fail an emissions test due to the increase in harmful emissions associated with a lean fuel mixture.
10. How can I prevent OBDII code P0174 from recurring in my 2010 Nissan Altima Sedan?
- Regular maintenance, such as checking for vacuum leaks, replacing air filters, and using quality fuel, can help prevent this code from recurring.
Discuss the causes and fixes for P0174 2010 Nissan Altima Sedan OBDII Code
Code P0174 2010 Nissan Altima Sedan comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
