how to fix a Honda Civic 9th Generation (2012-2015) that won't start after fueling?

Solution

1. Preparation

• Tools Required: OBD-II scanner, fuel pressure gauge, socket set, multimeter, safety glasses, gloves.
• Ensure the vehicle is parked on a level surface and the engine is cool. Disconnect the negative battery terminal.

2. Check Fuel Pump Operation

• Sub-steps:
  1. Reconnect the battery temporarily.
  2. Turn the ignition key to the "ON" position (do not start) and listen for the fuel pump operation (a humming sound).
  3. If no sound is heard, replace the fuel pump relay and check again.
  4. If the pump operates, proceed to check fuel pressure.

3. Test Fuel Pressure

• Sub-steps:
  1. Connect the fuel pressure gauge to the fuel rail service port.
  2. Turn the ignition key to the "ON" position and monitor the pressure reading.
  3. Compare the reading with the manufacturer's specifications (typically around 40-50 psi).
  4. If pressure is low, inspect and replace the fuel pump if necessary.

4. Inspect Fuel Injectors

• Sub-steps:
  1. Disconnect the fuel injector connectors.
  2. Use a multimeter to check the resistance of each injector (should be within specifications).
  3. If any injectors are faulty, replace them.

5. Evaluate the Evaporative Emission System

• Sub-steps:
  1. Inspect the fuel filler neck for cracks or damage.
  2. Check the evaporative canister for blockages or leaks.
  3. Replace any damaged components and ensure all hoses are properly connected.