Engine-Codes.com
Engine-Codes – Honda – P0171 2018 Honda CR-V

P0171 2018 Honda CR-V Code - Fuel Injection System Too Lean Bank 1

Quick Answer

The P0171 code in a 2018 Honda CR-V indicates that the fuel injection system on bank 1 is running too lean. Common causes include Vacuum leak in the intake system, 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
P0171 2018 Honda CR-V indicates Fuel Injection System Too Lean Bank 1.
Common causes
Common causes include Vacuum leak in the intake system, 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 10, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0171 2018 Honda CR-V Description

The P0171 code in a 2018 Honda CR-V indicates that the fuel injection system on bank 1 is running too lean. This means that there is an imbalance in the air-fuel mixture being delivered to the engine, with more air than fuel present. This can lead to a variety of performance issues and potential long-term effects if not addressed promptly.

OBDII Code P0171 2018 Honda CR-V - Fuel Injection System Too Lean Bank 1
P0171 2018 Honda CR-V Code - Fuel Injection System Too Lean Bank 1

Common Causes of P0171 2018 Honda CR-V

  1. Vacuum leak in the intake system
  2. Faulty oxygen sensor
  3. Clogged fuel filter
  4. Malfunctioning mass air flow sensor
  5. Issues with fuel injectors

Symptoms of P0171 2018 Honda CR-V

  1. Loss of power during acceleration
  2. Rough idling or stalling
  3. Hesitation or stumbling when accelerating
  4. Increased fuel consumption
  5. Check Engine Light illuminated

How to Fix P0171 2018 Honda CR-V

  1. Perform a visual inspection of the intake system and vacuum lines to check for any leaks. Repair or replace any damaged components.
  2. Test the oxygen sensor 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 air flow sensor and clean or replace it if it is faulty.
  5. Inspect the fuel injectors for clogs or malfunctions, and clean or replace as needed.

Cost to Fix P0171 2018 Honda CR-V

The typical repair costs for addressing a P0171 code in a 2018 Honda CR-V can vary depending on the specific cause of the issue. On average, the cost of parts for this repair could range from $100 to $500, while labor costs may range from $100 to $300. However, it's important to note that these are rough estimates and actual costs can vary based on location, vehicle make and model, and the specific repair shop. It's recommended to obtain quotes from local auto repair shops for a more accurate cost estimate.

What does this mean?

Tech Notes for P0171 2018 Honda CR-V

If the P0171 is combined with the P0174 code, it's highly 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 Mass Air Flow (MAF) Sensor. If the problem persists, the A/F Sensor (Sensor 1) may need to be replaced.

Need more information about the P0171 2018 Honda CR-V code?

Need more information on how to fix the P0171 2018 Honda CR-V code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0171 2018 Honda CR-V code diagnosed by a professional: Find a repair shop in your area

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 P0171 2018 Honda CR-V Code

1. What does OBDII code P0171 mean for a 2018 Honda CR-V?

The P0171 code on a 2018 Honda CR-V indicates a "Fuel Injection System Too Lean Bank 1" issue, meaning that there is an imbalance in the air-fuel mixture in the engine's cylinders.

2. What are common symptoms of OBDII code P0171 in a 2018 Honda CR-V?

Common symptoms of P0171 in a 2018 Honda CR-V include rough idling, poor acceleration, decreased fuel efficiency, and in some cases, the Check Engine light may illuminate.

3. What are potential causes of OBDII code P0171 on a 2018 Honda CR-V?

Possible causes of P0171 in a 2018 Honda CR-V include a vacuum leak, faulty oxygen sensor, dirty or clogged fuel injectors, a malfunctioning mass airflow sensor, or a problem with the fuel pressure regulator.

4. How can I diagnose the OBDII code P0171 in my 2018 Honda CR-V?

To diagnose P0171, you can use an OBDII scanner to read the code and then inspect the intake system, vacuum hoses, oxygen sensor, fuel injectors, and other components related to the fuel injection system for any issues.

5. Can a dirty air filter trigger the OBDII code P0171 on a 2018 Honda CR-V?

Yes, a dirty air filter can disrupt the air-fuel mixture, leading to a lean condition and triggering the P0171 code in a 2018 Honda CR-V. Regular air filter maintenance is essential for optimal engine performance.

6. How can I repair OBDII code P0171 on my 2018 Honda CR-V?

Repairing P0171 on a 2018 Honda CR-V may involve fixing any vacuum leaks, replacing a faulty oxygen sensor, cleaning or replacing clogged fuel injectors, ensuring proper fuel pressure, or addressing issues with the mass airflow sensor.

7. Is it safe to continue driving my 2018 Honda CR-V with OBDII code P0171?

It is not recommended to drive your 2018 Honda CR-V with the P0171 code unresolved, as a lean fuel mixture can lead to engine damage over time. It's best to address the issue promptly to prevent further complications.

8. Can a bad fuel pump cause the OBDII code P0171 on a 2018 Honda CR-V?

Yes, a failing fuel pump can disrupt the fuel delivery system, leading to a lean condition and triggering the P0171 code in a 2018 Honda CR-V. Checking the fuel pump's functionality is advisable when diagnosing this code.

9. Will resetting the Check Engine light fix OBDII code P0171 on a 2018 Honda CR-V?

Simply resetting the Check Engine light will not resolve the underlying issue causing the P0171 code on a 2018 Honda CR-V. It's crucial to diagnose and address the root cause of the problem to prevent further issues.

10. How can I prevent OBDII code P0171 from recurring on my 2018 Honda CR-V?

To prevent the recurrence of the P0171 code on your 2018 Honda CR-V, perform regular maintenance, such as replacing air filters, cleaning fuel injectors, checking for vacuum leaks, and ensuring all engine components are functioning correctly. Regular inspections can help maintain a healthy fuel injection system.

Discuss the causes and fixes for P0171 2018 Honda CR-V OBDII Code

Submit a New Comment

Code P0171 2018 Honda CR-V comments

No comments found for this page.