what does the P0302 code mean for my Toyota Corolla E210 and how to fix it?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery before starting any work on the vehicle.
• Ensure the engine is cool to avoid burns.

2. Inspect and Replace Ignition Components

• Tools Required: Socket set, torque wrench, spark plug gap tool.
• Remove the engine cover if applicable.
• Disconnect the ignition coil connector for cylinder 2 and remove the ignition coil.
• Inspect the spark plug; replace if worn or fouled. Recommended spark plug gap is typically 0.044 inches (1.1 mm).
• Install a new ignition coil if the old one shows signs of failure (cracks, corrosion, etc.).
• Reconnect the ignition coil and ensure all connections are secure.

3. Check and Replace Fuel Injector

• Tools Required: Fuel injector removal tool, torque wrench.
• Disconnect the fuel injector connector for cylinder 2.
• Remove the fuel rail (if necessary) to access the fuel injector.
• Inspect the fuel injector for clogs or damage; replace if necessary.
• Reinstall the fuel rail and ensure all bolts are torqued to the manufacturer's specifications.

4. Compression Test (if necessary)

• Tools Required: Compression tester.
• Remove the spark plug for cylinder 2.
• Insert the compression tester into the spark plug hole.
• Crank the engine and record the compression reading; compare it to the manufacturer's specifications.
• If the compression is low, further internal engine repairs may be necessary.