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

Solution

1. Preparation

• Gather necessary tools and materials.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shocks.

2. Replace Spark Plug

• Remove the ignition coil cover if applicable.
• Disconnect the ignition coil connector and remove the coil by unscrewing it.
• Use a spark plug socket to carefully remove the spark plug from cylinder 1.
• Inspect the spark plug for wear; if necessary, replace it with a new one, ensuring it meets OEM specifications (usually around 0.044 inches gap).
• Reinstall the spark plug, torque it to the manufacturer's specifications (typically around 13 lb-ft).

3. Check and Replace Ignition Coil

• If the ignition coil appears damaged or ineffective, replace it with a new coil.
• Install the new ignition coil, reconnect the coil connector, and reinstall the coil cover if applicable.

4. Inspect and Clean Fuel Injector

• If the fuel injector is suspected to be faulty, remove it using the appropriate injector removal tool.
• Clean the injector with a specialized cleaner or replace it with a new one if cleaning does not resolve the issue.
• Reinstall the injector, ensuring it is seated properly and reconnect any electrical connectors.

5. Final Assembly and Testing

• Reconnect the negative battery terminal.
• Start the engine and check for any abnormal noises or leaks.
• Conduct a test drive to monitor performance.