how to clear P0301 misfire code on my Toyota Tacoma N300 (2016-Present)

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, torque wrench, multimeter, compression tester.
• Gather all parts and tools required for the repair.
• Safety Warnings: Disconnect the battery before working on electrical components.

2. Replace Spark Plug (if necessary)

• Remove the ignition coil by unscrewing the bolts and disconnecting the electrical connector.
• Unscrew the spark plug using a spark plug socket and ratchet.
• Inspect the spark plug for wear; if damaged, replace it with a new one.
• Torque the new spark plug to manufacturer specifications (typically around 13 lb-ft).
• Reinstall the ignition coil, ensuring it is securely fastened and the connector is reattached.

3. Replace Ignition Coil (if necessary)

• If the ignition coil is faulty, remove it by unscrewing it from the cylinder head.
• Install the new ignition coil, ensuring proper alignment and torque to specifications (usually around 10 lb-ft).
• Reconnect the electrical harness securely.

4. Clean or Replace Fuel Injector (if necessary)

• Remove the intake manifold if access to the fuel injector is required.
• Disconnect the fuel line and electrical connector from the injector.
• Use an injector cleaning kit to clean the injector or replace it if it is clogged.
• Reinstall the fuel injector and reconnect all lines and connectors.

5. Perform Compression Test (if necessary)

• Remove the spark plug from cylinder 1.
• Insert the compression tester into the spark plug hole.
• Crank the engine and read the compression pressure; compare it to manufacturer specifications.
• If low, further diagnosis is required for internal engine issues.