Fuel Pressure Relieving: Procedure

How to use this service information .

NOTICE: 

• Refer to the Fuel and Emissions Systems Service Precautions before doing the procedure.
• Before disconnecting fuel lines or hoses, relieve pressure from the system by disabling the fuel pump and disconnecting the fuel line/quick connect fitting in the engine compartment.

With HDS 

1. Fuel Pressure - Relieve

   Preconditions 

   • HDS Connected

   Figure 1 

   Courtesy of HONDA, U.S.A., INC.

   Procedure/Specifications 

   1. Remove the emergency fuel funnel (a). (Figure 1)

   Figure 2 

   Courtesy of HONDA, U.S.A., INC.

   2. Insert the emergency fuel funnel (b) into the fuel filler neck to relieve the pressure in the fuel tank. (Figure 2)

   3. Stop the fuel pump.

   • Select the following menu buttons on the HDS screen in sequence.
   • • PGM-FI (System Selection Menu)
     • Function Test
     • FUEL PUMP OFF

   4. Start the engine, and let it idle until it stalls.

   NOTICE: 

   • Do not allow the engine to idle above 1, 000 rpm or the PCM will continue to operate the fuel pump.
   • A Pending or Confirmed DTC may be set during this procedure. Check for DTCs, and clear them as needed.

   5. Turn the vehicle to the OFF (LOCK) mode.

   After Relieving 

   • 12 Volt Battery Terminals Disconnection
   NOTE:

   Disconnect the 12 volt battery terminal after relieving the fuel pressure to reduce the risk of a fire caused by sparks.

   Without HDS 

2. Fuel Pressure - Relieve

   Figure 1 

   Courtesy of HONDA, U.S.A., INC.

   Procedure/Specifications 

   1. Remove the emergency fuel funnel (a). (Figure 1)

   Figure 2 

   Courtesy of HONDA, U.S.A., INC.

   2. Insert the emergency fuel funnel (b) into the fuel filler neck to relieve the pressure in the fuel tank. (Figure 2).

   3. Remove PGM-FI main relay 2 - Refer to: Fuel and Emissions Systems Component Location Index (M/T, Type-S) (2024 2025) or Fuel and Emissions Systems Component Location Index (1.5L Engine)

   4. Start the engine, and let it idle until it stalls.

   NOTICE:  If any DTCs are stored, clear the DTC after all work related to relieving fuel pressure has been completed.

   5. Turn the vehicle to the OFF (LOCK) mode.

   6. Install PGM-FI main relay 2 - Refer to: Fuel and Emissions Systems Component Location Index (M/T, Type-S) (2024 2025) or Fuel and Emissions Systems Component Location Index (1.5L Engine)

   .

   After Relieving 

   1. DTC Clear - Refer to: How to Troubleshoot the Fuel and Emissions Systems (1.5L Engine) or How to Troubleshoot the Brake Booster Pressure Monitoring System or How to Troubleshoot the Fuel and Emissions Systems (2.0L Engine) (2024 2025) or How to Troubleshoot the CVT System

   2. 12 Volt Battery Terminals Disconnection

   NOTE:

   Disconnect the 12 volt battery terminal after relieving the fuel pressure to reduce the risk of a fire caused by sparks.