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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative terminal of the battery.
• Ensure the vehicle is on a flat surface and securely raised if needed.

2. Inspect and Repair Air Intake

• Sub-steps:
  1. Remove the air intake duct and inspect for cracks or loose connections.
  2. Replace any damaged hoses or clamps.
  3. Clean the MAF sensor using MAF cleaner spray (do not touch the sensor element).

3. Check and Adjust Fuel System

• Sub-steps:
  1. Connect a fuel pressure gauge to the fuel rail.
  2. Turn the ignition to the ON position (do not start the engine) and check the fuel pressure. It should match manufacturer specifications (typically around 50-60 psi).
  3. If pressure is low, inspect the fuel pump, fuel filter, and fuel lines for clogs or failures. Replace as necessary.

4. Inspect and Test Fuel Injectors

• Sub-steps:
  1. Remove the fuel injectors carefully.
  2. Test each injector with a multimeter to check for proper resistance.
  3. Clean or replace any faulty injectors.

5. Reconnect and Reset

• Sub-steps:
  1. Reassemble any components that were removed during inspection.
  2. Reconnect the negative battery terminal.
  3. Clear the P0171 code using the OBD-II scanner.