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

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the battery to prevent electrical shorts.

Tools Required:

• OBD-II scanner
• Vacuum gauge
• Multimeter
• Fuel pressure gauge
• Basic hand tools (socket set, screwdrivers, pliers)

2. Inspect and Repair Vacuum Leaks

• Sub-step 1: Visually inspect all vacuum hoses for cracks or disconnections.
• Sub-step 2: Use a vacuum gauge to check for low readings indicating leaks.
• Sub-step 3: Replace any damaged hoses or gaskets found during inspection.

3. Test and Replace MAF Sensor (if necessary)

• Sub-step 1: Disconnect the MAF sensor connector.
• Sub-step 2: Use a multimeter to check the MAF sensor output while the engine is running.
• Sub-step 3: If readings are outside the manufacturer's specifications, replace the MAF sensor.

4. Check Fuel System

• Sub-step 1: Connect a fuel pressure gauge to the fuel rail.
• Sub-step 2: Turn the ignition to the "ON" position without starting the engine and check the fuel pressure.
• Sub-step 3: If the pressure is low, inspect the fuel pump and replace the fuel filter if it's clogged.

5. Clear Error Codes

• Sub-step 1: Reconnect the battery.
• Sub-step 2: Use the OBD-II scanner to clear the P0174 code.