how to fix P0174 code in Honda Accord 9th Generation (2013-2017)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to avoid electrical issues.
• Allow the engine to cool completely before starting any work.

2. Inspect and Repair Air Intake System

• Tools Required: Socket set, screwdrivers, vacuum gauge
• Remove the air intake duct and visually inspect for cracks or loose connections.
• Use a vacuum gauge to check for leaks in the intake manifold and repair any found.

3. Clean or Replace MAF Sensor

• Tools Required: MAF cleaner, torque wrench
• Disconnect the MAF sensor connector.
• Remove the MAF sensor from the air intake pipe.
• Clean the sensor using MAF cleaner and allow it to dry. If damaged, replace the sensor with a new one.
• Reinstall the MAF sensor and reconnect the wiring harness.

4. Check and Adjust Fuel Pressure

• Tools Required: Fuel pressure gauge
• Connect the fuel pressure gauge to the fuel rail test port.
• Turn the ignition to the ON position (do not start the engine) and check the fuel pressure.
• If fuel pressure is below specification, inspect the fuel pump, fuel filter, and fuel pressure regulator for issues.

5. Inspect and Test Fuel Injectors

• Tools Required: Multimeter, injector cleaning kit (if needed)
• Disconnect the fuel injector connectors.
• Use a multimeter to check for proper resistance and operation of each injector.
• If injectors are clogged, perform a cleaning procedure or replace them if necessary.