why does my Honda Civic 11th Generation (2022-Present) have poor fuel economy?

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the battery before working on electrical components.

2. Replace Air Filter

1. Open the hood and locate the air filter housing.
2. Remove the clips or screws securing the air filter cover.
3. Take out the old air filter and inspect the housing for debris.
4. Install the new air filter, ensuring it fits snugly.
5. Reattach the air filter cover and secure it.

3. Inspect and Clean Fuel Injectors

1. Relieve the fuel system pressure by removing the fuel pump fuse and running the engine until it stalls.
2. Disconnect fuel injector connectors and remove the fuel rail.
3. Use a fuel injector cleaning kit to clean each injector according to the manufacturer's instructions.
4. Reassemble the fuel rail and reconnect the injectors, ensuring proper seating.

4. Replace Engine Oil and Filter

1. Drain the old engine oil by removing the oil drain plug.
2. Replace the oil filter using an oil filter wrench.
3. Install the drain plug and torque it to the manufacturer’s specifications.
4. Refill the engine with the recommended oil type and quantity.

5. Test Oxygen Sensors

1. Locate the oxygen sensors (pre-catalytic converter and post-catalytic converter).
2. Use a multimeter to check the voltage and response time of each sensor.
3. Replace any faulty sensors with OEM parts.