how to fix P0171 lean condition code in Tesla Model S Original (2012-2020)

• •Check engine light illuminated
• •Reduced engine performance
• •Rough idle
• •Increased fuel consumption
• •Possible engine stalling

1. 1Scan for error codes using an OBD-II scanner to confirm P0171 and check for additional codes.
2. 2Inspect the air intake system for leaks or damage, including hoses and connections.
3. 3Examine the fuel system, checking fuel pressure and ensuring the fuel filter is not clogged.
4. 4Inspect the mass airflow sensor (MAF) for dirt or malfunction and clean or replace as necessary.
5. 5Check the oxygen sensor operation by monitoring live data to see if it’s functioning properly.
6. 6Verify that the engine's vacuum system is intact, checking for vacuum leaks around gaskets and hoses.

After completing the repair, verify that the issue has been resolved:

• ✓Test the affected component to ensure it functions correctly
• ✓Check for any error codes or warning lights
• ✓Monitor the vehicle for a few days to ensure the issue does not recur

To prevent this issue from occurring again:

• •Follow the manufacturer's recommended maintenance schedule
• •Address warning signs early before they develop into major issues
• •Use quality parts and fluids recommended for your vehicle
• •Keep detailed records of all repairs and maintenance

• •OBD-II scanner
• •Fuel pressure gauge
• •Multimeter
• •MAF cleaner
• •Basic socket set
• •Torque wrench

• •Replacement air filter
• •Replacement fuel filter
• •Replacement fuel pump (if necessary)
• •Replacement MAF sensor (if necessary)
• •Replacement oxygen sensor (if necessary)