how to fix P0303 code in Honda CR-V Sixth Generation (2023-present)

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to avoid electrical shorts.

2. Replace Spark Plug

• Tools Required: Spark plug socket, extension, torque wrench
• Remove the ignition coil for cylinder 3:
  • Unscrew the bolts securing the coil.
  • Gently pull the coil out.
• Remove the spark plug:
  • Use the spark plug socket to unscrew and remove the old spark plug.
• Install new spark plug:
  • Gap the new spark plug according to manufacturer specifications.
  • Hand-tighten the spark plug, then torque it to the specified value (usually around 13 lb-ft).

3. Replace Ignition Coil

• Tools Required: Socket set
• Install the new ignition coil:
  • Place the new ignition coil in position.
  • Secure it with the bolts removed earlier.

4. Inspect and Replace Fuel Injector

• Tools Required: Fuel injector puller, socket set
• Disconnect the fuel line and electrical connector from the fuel injector for cylinder 3.
• Remove the fuel injector:
  • Use a fuel injector puller if necessary.
• Install the new fuel injector and reconnect the fuel line and electrical connector.

5. Perform a Compression Test (if necessary)

• Tools Required: Compression tester
• Remove the spark plug from cylinder 3.
• Insert the compression tester and crank the engine.
• Record the compression reading and compare it to specifications.