Fuel Pressure Relieving

NOTE:
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.
When you relieve the fuel pressure, stop the fuel pump according to 1st procedure (with the HDS) or 2nd procedure (without the HDS).

1. Fuel Fill Cap - Remove

Remove the fuel fill cap to relieve the pressure in the fuel tank.

2. Fuel Pump - Stop (with HDS)
1.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, but do not start the engine.
2.
Connect the HDS to the DLC (A) located under the driver’s side of the dashboard.
3.
Make sure the HDS communicates with the PCM and other vehicle systems. If it doesn't, go to the DLC circuit troubleshooting.
4.
From the INSPECTION MENU of the HDS, select Fuel Pump OFF, then start the engine, and let it idle until it stalls.
NOTE:
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 ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

3. Fuel Pump - Stop (without HDS)
1.
Remove PGM-FI main relay 2 (A) from the under-dash fuse/relay box.
2.
Start the engine, and let it idle until it stalls.
NOTE: If any DTCs are stored, clear and ignore them.
3.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
4.
Install PGM-FI main relay 2.

4. Battery Terminal - Disconnect

Do the battery terminal disconnection procedure.

5. Fuel Pressure - Relieve
1.
Remove the quick-connect fitting cover (A).
2.
Check the fuel quick-connect fitting (B) for dirt, and clean it if needed.
3.
Place a rag or shop towel over the quick-connect fitting (A).
4.
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.
5.
After disconnecting the quick-connect fitting, check it for dirt or damage.
6.
Align the quick-connect fittings with the line (A), and align the retainer locking tabs (B) with the connector grooves (C).
7.
Press the quick-connect fittings onto the line until both retainer tabs lock with a clicking sound.
NOTE: If it is hard to connect, put a small amount of new engine oil on the line end.
8.
Make sure the connection is secure and the tabs are firmly locked into place; check visually and also by pulling the connector.
9.
Install the quick-connect fitting cover (A).

6. Battery Terminal - Connect

Do the battery terminal reconnection procedure.

7. Fuel Fill Cap - Install

Install the fuel fill cap.