how to fix P0174 code in my Volvo XC60 First Generation (2008-2017)

Learn how to diagnose and fix P0174 engine lean condition in Volvo XC60 (2008-2017). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery negative terminal.

2. Check Vacuum Lines

• Inspect all vacuum hoses for cracks or disconnections.
• Replace any damaged hoses with new ones.
• Reattach hoses securely.

3. Inspect MAF Sensor

• Remove the MAF sensor from the air intake duct (typically requires a Torx screwdriver).
• Clean the MAF sensor using MAF cleaner spray. Do not touch the sensor elements.
• Reinstall the MAF sensor securely.

4. Check Intake Manifold Gasket

• Remove the intake manifold (if necessary) to access the gasket.
• Inspect the gasket for signs of wear or leaks.
• Replace the gasket if damaged and reassemble the intake manifold.

5. Examine Fuel System

• Connect a fuel pressure gauge to the fuel rail and check the pressure against specifications.
• If pressure is low, check the fuel pump and replace if necessary.
• Inspect fuel injectors for clogs or leaks. Clean or replace as needed.

6. Test Drive and Reset

• Reconnect the battery terminal.
• Start the engine and ensure it runs smoothly.
• Clear the P0174 code using the OBD-II scanner and take the vehicle for a test drive.