why does my Porsche 911 992 (2019-Present) check engine light stay on after I reset it

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to avoid any electrical issues.

2. Replace Faulty Sensors

• Identify the specific sensor causing the check engine light (refer to error codes).
• Tools Required: Socket set, torque wrench, O2 sensor socket (if applicable).
• Sub-steps:
  1. Remove the electrical connector from the faulty sensor.
  2. Unscrew the sensor from its mounting location.
  3. Install the new sensor and tighten to manufacturer specifications (usually around 30 Nm for O2 sensors).
  4. Reconnect the electrical connector securely.

3. Inspect and Replace Spark Plugs

• If spark plugs are worn or fouled, replace them.
• Tools Required: Spark plug socket, torque wrench.
• Sub-steps:
  1. Remove the ignition coil by unscrewing it from the engine.
  2. Carefully pull out the old spark plug using a spark plug socket.
  3. Gap the new spark plug according to manufacturer specifications.
  4. Install the new spark plug and torque to 25 Nm.
  5. Reinstall the ignition coil.

4. Check for Vacuum Leaks

• Inspect hoses and connections for any signs of wear or disconnections.
• Tools Required: Smoke machine (optional), basic hand tools.
• Sub-steps:
  1. Visually inspect all vacuum lines for cracks or breaks.
  2. If available, use a smoke machine to introduce smoke into the intake and observe for leaks.
  3. Replace any damaged hoses or connections as needed.

5. Clear Codes and Test Drive

• After repairs, clear the error codes from the vehicle’s computer.
• Tools Required: OBD-II scanner.
• Sub-steps:
  1. Reconnect the battery.
  2. Use the OBD-II scanner to clear stored codes.
  3. Start the engine and perform a test drive to ensure all systems are functioning correctly.