how to fix P0302 code in Volkswagen Tiguan First Generation (2007-2018)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the vehicle battery to ensure safety while working on electrical components.

2. Replace Spark Plug

• Sub-steps:
  1. Remove the engine cover (if applicable) using a socket set.
  2. Disconnect the ignition coil connector from the spark plug.
  3. Remove the ignition coil using a socket wrench.
  4. Remove the old spark plug using a spark plug socket and ratchet.
  5. Inspect the new spark plug for damage and gap specification (0.028-0.032 inches).
  6. Install the new spark plug and torque it to 22 lb-ft.
  7. Reinstall the ignition coil and connect the electrical connector.

3. Test Ignition Coil

• Sub-steps:
  1. If the coil was swapped during diagnostics, ensure it is back in its original position.
  2. Test the ignition coil with a multimeter for primary and secondary resistance according to specifications.
  3. Replace the ignition coil if it is out of specification.

4. Inspect and Clean Fuel Injector

• Sub-steps:
  1. Disconnect the fuel line and wiring from the fuel injector.
  2. Remove the fuel injector from the rail.
  3. Clean the injector using a fuel injector cleaner or ultrasonic cleaner.
  4. Reinstall the injector, ensuring a proper seal.

5. Reassemble and Reconnect

• Sub-steps:
  1. Reconnect the fuel line and wiring harness.
  2. Reinstall any components removed during the process.
  3. Reconnect the battery.