how to fix P0171 code in Honda CR-V Sixth Generation (2023-present)

Solution

1. Preparation

• Gather tools and safety equipment.
• Disconnect the battery to prevent any electrical issues.
• Ensure the engine is cool before starting work.

2. Inspect and Repair Air Intake System

• Sub-steps:
  1. Remove the air intake hose and visually inspect for cracks or damage.
  2. Replace any damaged hoses or components.
  3. Reconnect the air intake system securely.

3. Clean or Replace MAF Sensor

• Tools Required: MAF sensor cleaner, Torx screwdriver or socket set
• Sub-steps:
  1. Disconnect the MAF sensor connector.
  2. Remove the MAF sensor from the intake tube.
  3. Clean the sensor with MAF cleaner. Avoid touching the sensor element.
  4. Reinstall the MAF sensor and securely connect the electrical connector.

4. Check and Repair Fuel System

• Sub-steps:
  1. Use a fuel pressure gauge to check the fuel pressure. Compare it with manufacturer specifications.
  2. If the pressure is low, inspect and replace the fuel filter and consider checking the fuel pump.
  3. Reconnect any disconnected fuel lines and ensure no leaks are present.

5. Inspect Engine Vacuum Lines

• Sub-steps:
  1. Visually inspect all vacuum lines connected to the intake manifold.
  2. Replace any cracked or damaged vacuum hoses.
  3. Ensure all connections are tight and secure.