how to resolve P0301 code in Honda CR-V Fifth Generation (2017-2022)

Solution

1. Preparation

• Gather tools and parts required.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Replace Spark Plug

1. Remove the engine cover if necessary.
2. Use a socket wrench to remove the spark plug from cylinder 1.
3. Inspect the old spark plug for wear, carbon buildup, or damage.
4. Install a new spark plug, ensuring the gap is set to the manufacturer’s specifications (typically around 0.044 inches).
5. Torque the spark plug to the specified value (usually around 13 lb-ft).

3. Replace Ignition Coil

1. Disconnect the electrical connector from the ignition coil on cylinder 1.
2. Remove the bolts securing the ignition coil and take out the coil.
3. Install the new ignition coil, ensuring it is seated properly.
4. Reconnect the electrical connector.

4. Inspect and Clean Fuel Injector

1. Remove the fuel rail if necessary to access the fuel injector for cylinder 1.
2. Disconnect the fuel injector electrical connector.
3. Remove the fuel injector from its seating.
4. Clean the injector using a fuel injector cleaning kit or replace it if damaged.
5. Reinstall the injector and reattach the fuel rail.

5. Perform Compression Test

1. Remove the spark plug from cylinder 1 again.
2. Insert the compression tester into the spark plug hole.
3. Crank the engine for several rotations and record the compression reading.
4. Compare the reading to the manufacturer’s specifications (typically around 180 psi).
5. If compression is low, investigate further for possible internal engine problems.