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

Solution

1. Preparation

• Gather required tools and parts.
• Disconnect the negative battery terminal to ensure safety.

2. Inspect and Repair Air Intake System

• Tools Required: Socket set, screwdriver, vacuum gauge
• Check the air intake hoses for cracks or disconnections and replace any damaged hoses.
• Ensure the air filter is clean; replace if necessary.

3. Clean or Replace MAF Sensor

• Tools Required: MAF sensor cleaner, Phillips screwdriver
• Carefully remove the MAF sensor from the air intake.
• Spray the MAF sensor with MAF cleaner and allow it to dry completely before reinstalling.

4. Test and Replace Fuel Pressure Regulator (if necessary)

• Tools Required: Fuel pressure gauge, wrench set
• Attach the fuel pressure gauge to the fuel rail test port.
• Turn the ignition to the on position without starting the engine and check the fuel pressure; it should match manufacturer specifications.
• If pressure is low, replace the fuel pressure regulator.

5. Inspect and Clean Fuel Injectors

• Tools Required: Injector cleaning kit, socket set
• Remove the fuel rail and injectors.
• Use an injector cleaning kit to clean each injector or replace if they are clogged or damaged.

6. Reassemble and Connect Battery

• Reinstall all components in reverse order of removal.
• Reconnect the negative battery terminal and ensure everything is secure.