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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Allow the engine to cool before starting work.

2. Inspect and Repair Air Intake System

• Sub-steps:
  1. Visually inspect all air intake hoses and connections for cracks or disconnections.
  2. Tighten any loose clamps and replace any damaged hoses.
  3. Reattach all connections securely.
• Tools Required: Socket set, screwdrivers

3. Check and Replace Fuel Filter (if necessary)

• Sub-steps:
  1. Locate the fuel filter along the fuel line.
  2. Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls.
  3. Disconnect the fuel lines from the filter using appropriate wrenches.
  4. Replace the old fuel filter with a new one, ensuring proper orientation.
  5. Reconnect fuel lines and reinstall the fuse.
• Tools Required: Wrenches, fuel line disconnect tool (if applicable)

4. Clean or Replace MAF Sensor

• Sub-steps:
  1. Locate the MAF sensor in the air intake duct.
  2. Disconnect the electrical connector and remove the sensor using a Torx or screwdriver.
  3. Clean the MAF sensor with MAF sensor cleaner; avoid touching the sensing elements.
  4. If damaged, replace the MAF sensor with a new one.
  5. Reinstall the sensor and reconnect the electrical connector.
• Tools Required: Torx or screwdriver, MAF sensor cleaner

5. Inspect and Replace Oxygen Sensors (if necessary)

• Sub-steps:
  1. Identify the upstream and downstream oxygen sensors.
  2. Disconnect the electrical connectors from the sensors.
  3. Remove the sensors using an oxygen sensor socket or wrench.
  4. Install new oxygen sensors and reconnect their electrical connectors.
• Tools Required: Oxygen sensor socket, wrench