how to diagnose fuel pump issues in Honda Accord 9th Generation (2013-2017)

Solution

1. Preparation

• Tools Required: OBD-II scanner, fuel pressure gauge, multimeter, basic hand tools, safety glasses, gloves.
• Safety Warnings: Disconnect the battery before starting work on the fuel system to prevent electrical shock or fire.

2. Access the Fuel Pump

• Sub-step 1: Remove the rear seat cushion by pulling up on the front edge to release the clips.
• Sub-step 2: Locate the access panel for the fuel pump on the floor beneath the seat and remove the screws or clips securing it.
• Sub-step 3: Carefully lift the access panel to expose the fuel pump assembly.

3. Inspect and Test the Fuel Pump

• Sub-step 1: With the fuel pump assembly exposed, inspect the electrical connector for any signs of corrosion or damage.
• Sub-step 2: Using a multimeter, check the voltage at the fuel pump connector while turning the ignition to the "ON" position. You should see around 12 volts.
• Sub-step 3: If voltage is present, proceed to test the fuel pump. Remove the fuel lines (be prepared for fuel spillage) and connect a fuel pressure gauge to the outlet.
• Sub-step 4: Turn the ignition key to the "ON" position and observe the fuel pressure gauge. It should read within manufacturer specifications.

4. Replace the Fuel Pump (if necessary)

• Sub-step 1: If the pump is faulty, disconnect the electrical connector and remove the fuel lines from the pump assembly.
• Sub-step 2: Unscrew the retaining ring holding the pump in place and carefully lift the pump assembly out of the tank.
• Sub-step 3: Install the new fuel pump assembly into the tank, securing it with the retaining ring.
• Sub-step 4: Reconnect the fuel lines and electrical connectors, ensuring they are secure.

5. Reassemble and Test

• Sub-step 1: Replace the access panel and secure it with screws or clips.
• Sub-step 2: Reinstall the rear seat cushion by pushing it down firmly to engage the clips.
• Sub-step 3: Reconnect the battery and start the engine to verify proper operation of the new fuel pump.