AutoCodes – Nissan – P0175 Nissan

P0175 Nissan Code - Fuel Injection System Too Rich 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 Faulty front heated oxygen sensor, Ignition misfiring, Faulty fuel injectors. 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: P0175 Nissan indicates Fuel Injection System Too Rich Bank 2.
Common causes: Common causes include Faulty front heated oxygen sensor, Ignition misfiring, Faulty fuel injectors.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 36,956

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0175 Nissan Description

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. The Engine Control Module (ECM) calculates the necessary compensation to correct the offset between the actual and the theoretical ratios.
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).

OBDII Code P0175 Nissan - Fuel Injection System Too Rich Bank 2 - AutoCodes.com — P0175 Nissan Code - Fuel Injection System Too Rich Bank 2

What does this mean?

What are the Possible Causes of the DTC P0175 Nissan?

Faulty front heated oxygen sensor
Ignition misfiring
Faulty fuel injectors
Exhaust gas leaks
Incorrect fuel pressure
Faulty Mass Air Flow (MAF) sensor

How to Fix the DTC P0175 Nissan?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0175 Nissan 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 P0175 Nissan code?

Need more information on how to fix the P0175 Nissan code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0175 Nissan code diagnosed by a professional: Find a repair shop in your area

Information for Specific Nissan Models

P0175 2002 Nissan Altima Sedan — Fuel Injection System Too Rich Bank 2
P0175 2003 Nissan Altima Sedan — Fuel Injection System Too Rich Bank 2
P0175 2004 Nissan Altima Sedan — Fuel Injection System Too Rich Bank 2
P0175 2005 Nissan Altima Sedan — Fuel Injection System Too Rich Bank 2
P0175 2006 Nissan Altima Sedan — Fuel Injection System Too Rich Bank 2
P0175 2008 Nissan Altima Sedan — Fuel Injection System Too Rich Bank 2
P0175 2009 Nissan Altima Sedan — Fuel Injection System Too Rich Bank 2
P0175 2010 Nissan Altima Sedan — Fuel Injection System Too Rich Bank 2
P0175 2011 Nissan Altima Sedan — Fuel Injection System Too Rich Bank 2
P0175 2012 Nissan Altima Sedan — Fuel Injection System Too Rich Bank 2
P0175 2004 Nissan Maxima — Fuel Injection System Too Rich Bank 2
P0175 2005 Nissan Maxima — Fuel Injection System Too Rich Bank 2
P0175 2006 Nissan Maxima — Fuel Injection System Too Rich Bank 2
P0175 2007 Nissan Maxima — Fuel Injection System Too Rich Bank 2
P0175 2008 Nissan Maxima — Fuel Injection System Too Rich Bank 2
P0175 2005 Nissan Pathfinder — Fuel Injection System Too Rich Bank 2
P0175 2006 Nissan Pathfinder — Fuel Injection System Too Rich Bank 2
P0175 2007 Nissan Pathfinder — Fuel Injection System Too Rich Bank 2
P0175 2008 Nissan Pathfinder — Fuel Injection System Too Rich Bank 2
P0175 2009 Nissan Pathfinder — Fuel Injection System Too Rich Bank 2
P0175 2010 Nissan Pathfinder — Fuel Injection System Too Rich Bank 2
P0175 2011 Nissan Pathfinder — Fuel Injection System Too Rich Bank 2
P0175 2012 Nissan Pathfinder — Fuel Injection System Too Rich Bank 2
P0175 2002 Nissan Sentra — Fuel Injection System Too Rich Bank 2
P0175 2007 Nissan Sentra — Fuel Injection System Too Rich Bank 2
P0175 2008 Nissan Sentra — Fuel Injection System Too Rich Bank 2
P0175 2009 Nissan Sentra — Fuel Injection System Too Rich Bank 2
P0175 2010 Nissan Sentra — Fuel Injection System Too Rich Bank 2
P0175 2011 Nissan Sentra — Fuel Injection System Too Rich Bank 2
P0175 2012 Nissan Sentra — Fuel Injection System Too Rich Bank 2

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.