how to fix P0301 code on Toyota Camry XV70 (2018-2024)

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a flat surface, engage the parking brake, and disconnect the negative battery terminal.

2. Replace Spark Plug and Ignition Coil

1. Remove Engine Cover (if applicable)

   • Use a socket set to remove bolts securing the cover.
   • Carefully lift and set aside the cover.

2. Access Spark Plug and Ignition Coil

   • Locate Cylinder 1 (usually the front left side of the engine).
   • Disconnect the electrical connector from the ignition coil.

3. Remove Ignition Coil

   • Unscrew the bolts securing the ignition coil using a socket.
   • Gently pull the ignition coil out of the cylinder head.

4. Replace Spark Plug

   • Use a spark plug socket to unscrew and remove the spark plug.
   • Inspect the old spark plug for wear.
   • Install the new spark plug (torque to manufacturer specifications, typically around 13-16 ft-lbs).

5. Reinstall Ignition Coil

   • Insert the new ignition coil into the spark plug hole.
   • Tighten the bolts to secure the coil (consult torque specifications).
   • Reconnect the electrical connector.

3. Test Fuel Injector

1. Remove Fuel Injector Connector

   • Disconnect the electrical connector from the fuel injector for Cylinder 1.

2. Perform Fuel Injector Test

   • Use a multimeter to check the resistance of the injector (specifications usually around 12-16 Ohms).
   • If resistance is out of range, replace the fuel injector.

3. Reinstall Connector

   • Reconnect the electrical connector to the fuel injector.

4. Final Assembly

• Reinstall the engine cover (if removed) and secure it with bolts.
• Reconnect the negative battery terminal.