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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Inspect and Repair Air Intake System

• Tools Required: Socket set, screwdrivers, vacuum gauge
• Remove the air intake duct and inspect for cracks or loose fittings.
• Replace any damaged components or secure loose fittings.

3. Fuel Pressure Test

• Tools Required: Fuel pressure gauge
• Connect the fuel pressure gauge to the fuel rail service port.
• Turn the ignition to the "ON" position (do not start) and check the pressure.
• If the pressure is below specifications, check the fuel pump and replace if necessary.

4. Clean the MAF Sensor

• Tools Required: MAF sensor cleaner
• Locate the MAF sensor in the air intake.
• Remove it carefully and spray the cleaner on the sensor element.
• Allow it to dry completely before reinstalling.

5. Inspect Fuel Injectors

• Tools Required: Multimeter, injector cleaner
• Use the multimeter to check the resistance of each injector.
• If any injector is out of specification, replace it.
• Clean the injectors using an injector cleaning kit if they are clogged.

6. Check Vacuum Hoses

• Inspect all vacuum hoses connected to the intake manifold for leaks.
• Replace any cracked or disconnected hoses.