how to fix the P0301 code in my Honda CR-V Fifth Generation (2017-2022)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Allow the engine to cool before starting work.

2. Inspect and Replace Spark Plug

• Remove the ignition coil for cylinder 1 using a socket set.
• Unscrew and remove the spark plug using a spark plug socket.
• Inspect the spark plug for signs of wear or fouling.
• If necessary, replace the spark plug with a new one (OEM recommended).
• Reinstall the ignition coil and ensure it is secured properly.

3. Check and Replace Ignition Coil

• If the spark plug is in good condition, test the ignition coil for proper voltage using a multimeter.
• If the coil is faulty, remove it and replace it with a new one, ensuring the connector is secure.

4. Inspect Fuel Injector

• Locate the fuel injector for cylinder 1.
• Disconnect the electrical connector and fuel line from the injector.
• Remove the fuel injector and inspect it for clogs or damage.
• If necessary, replace the fuel injector with a new one.

5. Perform Compression Test

• Remove the spark plug from cylinder 1 again.
• Insert a compression tester into the spark plug hole.
• Crank the engine and record the compression reading.
• If the compression is low, further diagnostics may be needed to check for internal engine problems.

6. Reassemble and Test

• Reinstall all components in reverse order after repairs.
• Reconnect the negative battery terminal.
• Start the engine and check for smooth operation.