how to fix P0301 misfire code on Tesla Model 3 Original (2017-2023)?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the 12V battery to ensure safety while working with electrical components.

Tools Required:

• OBD-II scanner
• Socket set
• Torque wrench
• Multimeter
• Compression tester
• Safety glasses and gloves

2. Inspect and Replace Ignition Components

a. Remove Engine Cover

• Use a socket set to remove the screws securing the engine cover.
• Gently lift and remove the engine cover.

b. Replace Spark Plug

• Remove the ignition coil from cylinder 1 by unscrewing the retaining bolts.
• Carefully pull the ignition coil straight out.
• Use a spark plug socket to remove the spark plug from cylinder 1.
• Inspect the old spark plug for wear; replace it with a new one if necessary.
• Torque the new spark plug to the manufacturer’s specifications (typically around 15 lb-ft).

c. Test and Replace Ignition Coil

• Measure the resistance of the ignition coil with a multimeter; compare with the specifications in the service manual.
• If out of range, replace the ignition coil with a new one.
• Reinstall the ignition coil, ensuring it is seated properly and torque the bolts to the specified value (usually around 10 lb-ft).

3. Reassemble and Reconnect

• Place the engine cover back and secure it with the screws.
• Reconnect the 12V battery.