how to fix P0302 code on Toyota Camry Seventh Generation (2012-2017)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the engine is cool and disconnect the battery to prevent any electrical shorts.

2. Replace Spark Plug

1. Remove the ignition coil from cylinder 2:
   • Unplug the electrical connector.
   • Remove the mounting bolts using a socket set.
2. Extract the spark plug using a spark plug socket.
3. Inspect the old spark plug for signs of wear or damage.
4. Install a new spark plug:
   • Apply anti-seize compound to the threads (if recommended).
   • Torque to manufacturer specification (typically around 13-15 lb-ft).
5. Reinstall the ignition coil, ensuring it is secured and reconnected properly.

3. Replace Ignition Coil (if necessary)

1. If the ignition coil was defective, remove it as described above.
2. Install a new ignition coil:
   • Position the new coil in place.
   • Secure with mounting bolts and reconnect the electrical connector.

4. Clean or Replace Fuel Injector (if necessary)

1. If the fuel injector is clogged, remove it by:
   • Disconnecting the fuel line (ensure fuel pressure is relieved first).
   • Unplugging the electrical connector.
   • Removing the mounting bolts or clips.
2. Clean the injector using a specialized injector cleaner or replace it with a new one.
3. Reinstall the fuel injector and reconnect all lines and connectors.

5. Conduct a Compression Test (if necessary)

1. Remove the spark plug from cylinder 2.
2. Insert the compression gauge into the spark plug hole.
3. Crank the engine and record the reading.
4. Compare to manufacturer specifications (typically around 190-210 PSI) to check for mechanical issues.