why does my Honda Accord Eleventh Generation (2023-present) have poor fuel economy

Solution

1. Preparation

• Gather tools and parts.
• Park the vehicle on a flat surface and engage the parking brake.
• Disconnect the negative battery terminal to ensure safety.

2. Check and Replace Air Filter

• Locate the air filter housing.
• Remove the screws or clips holding the housing in place.
• Take out the old air filter and inspect it for dirt and blockages.
• Install a new air filter that matches OEM specifications.
• Reassemble the air filter housing.

3. Inspect and Clean Fuel Injectors

• Relieve fuel pressure by removing the fuel pump fuse and running the engine until it stalls.
• Disconnect the fuel injector connectors and fuel lines (using a wrench).
• Remove the fuel injectors with a socket set.
• Clean injectors using a specialized injector cleaning kit or replace if necessary.
• Reinstall the cleaned or new fuel injectors and reconnect lines.

4. Check and Adjust Tire Pressure

• Use a tire pressure gauge to measure PSI in all tires.
• Inflate tires to the recommended pressure listed on the driver’s side doorjamb.
• Inspect tires for uneven wear and replace if necessary.

5. Verify Fuel Pressure

• Connect a fuel pressure gauge to the fuel rail.
• Turn the ignition on (do not start) to check pressure readings against manufacturer specifications.
• If pressure is low, inspect the fuel pump and fuel filter for issues.