Without the HDS

Remove the left kick panel (see step 3 on FRONT DOOR SILL AREA ).
Remove PGM-FI main relay 2 (A) from the driver's under-dash fuse/relay box.

Fig 1: Attaching Fuel Pressure Gauge Set And Fuel Pressure Gauge
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Start the engine, and let it idle until it stalls.
NOTE: If any DTCs are stored, clear and ignore them.
Turn the ignition switch to LOCK (0).
Remove the fuel fill cap to relieve the pressure in the fuel tank.
Do the battery terminal disconnection procedure (see BATTERY TERMINAL DISCONNECTION AND RECONNECTION ).
Remove the quick-connect fitting cover (A).

Fig 2: Disconnecting Transfer Tube
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Check the fuel quick-connect fitting for dirt, and clean it if needed.
Place a rag or a shop towel over the quick-connect fitting (A).

Fig 3: Connecting Fuel Tank Unit 5P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect the quick-connect fitting (A): Hold the connector (B) with one hand, and squeeze the retainer tabs (C) with the other hand to release them from the locking tabs (D). Pull the connector off.
NOTE:
- Be careful not to damage the line (E) or other parts.
- Do not use tools.
- If the connector does not move, keep the retainer tabs pressed down, and alternately pull and push the connector until it comes off easily.
- Do not remove the retainer from the line; once removed, the retainer must be replaced with a new one.
Fig 4: Connecting Vacuum Pump/Gauge To Transfer Tube
Courtesy of AMERICAN HONDA MOTOR CO., INC.
After disconnecting the quick-connect fitting, check it for dirt or damage (see step 5 on 5 ).
Do the battery terminal reconnection procedure (see BATTERY TERMINAL DISCONNECTION AND RECONNECTION ).