how to fix P0171 lean code in Tesla Outback 6th Generation (2020-2024)?

Solution

1. Preparation

• Gather tools and parts needed for inspection and repair.
• Ensure the vehicle is parked on a level surface and the ignition is off.
• Disconnect the negative battery terminal to prevent electrical shocks.

2. Inspect and Replace Air Intake Components

• Tools Required: Socket set, screwdrivers, vacuum gauge
• Remove air intake duct and inspect for cracks or leaks.
• Replace any damaged hoses or gaskets.
• Clean the MAF sensor using MAF cleaner if it appears dirty.

3. Fuel System Inspection

• Tools Required: Fuel pressure gauge
• Locate the fuel rail and connect the fuel pressure gauge.
• Turn the ignition to the "ON" position (do not start the engine) to check fuel pressure.
• If the pressure is below specifications, inspect the fuel pump and filter for issues.
• Replace the fuel filter and fuel pump if necessary.

4. Inspect Fuel Injectors

• Tools Required: Injector cleaner kit (if needed), socket set
• Disconnect the fuel injector electrical connectors.
• Remove the fuel rail to access the injectors.
• Inspect injectors for clogs or leaks; clean or replace as needed.

5. Check for Vacuum Leaks

• Tools Required: Smoke machine (optional), vacuum gauge
• Use a smoke machine to introduce smoke into the intake system to identify leaks.
• Inspect all vacuum hoses and the intake manifold for leaks.
• Replace any damaged hoses or gaskets found during inspection.