why does my Honda Civic use so much fuel compared to before

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery before working on electrical systems.

2. Replace Air Filter

• Locate the air filter housing and open it.
• Remove the old air filter and inspect the housing for debris.
• Install a new, clean air filter, ensuring it is sealed properly.
• Reassemble the housing and reconnect any clips.

3. Clean Fuel Injectors

• If necessary, remove the fuel injectors from the fuel rail.
• Use a fuel injector cleaning kit or solvent to clean the injectors.
• Reinstall the injectors, ensuring O-rings are lubricated and seated properly.

4. Check and Adjust Fuel Pressure

• Connect a fuel pressure gauge to the fuel rail.
• Turn on the ignition to prime the fuel system and check pressure readings.
• If pressure is outside manufacturer's specifications, replace the fuel pump or pressure regulator as needed.

5. Inspect Exhaust System

• Visually inspect the exhaust pipes and catalytic converter for any signs of damage or blockages.
• Replace any damaged components that could restrict exhaust flow.

6. Tire Pressure and Alignment Check

• Check tire pressure and inflate tires to the recommended levels.
• Inspect wheel alignment and adjust if necessary to ensure proper handling and fuel efficiency.