Fuel Pressure Relief (With J 34730-1A)

Special Tool 

J 34730-1A Fuel Pressure Gauge 

Fig 1: Identifying Fuel Pressure Gauge

Courtesy of SUZUKI OF AMERICA CORP.

1. Remove the engine cover, if required.
2. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure.
3. Remove the fuel rail service port cap.
   WARNING:

   Wrap a shop towel around the fuel pressure connection in order to reduce the risk of fire and personal injury. The towel will absorb any fuel leakage that occurs during the connection of the fuel pressure gauge. Place the towel in an approved container when the connection of the fuel pressure gauge is complete.

4. Wrap a shop towel around the fuel rail service port.
5. Connect the J 34730-1A to the fuel rail service port.
6. Place the hose on the J 34730-1A into an approved gasoline container.
7. Open the valve on the J 34730-1A in order to bleed any fuel from the fuel rail.
8. Close the valve on the J 34730-1A.
9. Remove the hose on the J 34730-1A from the approved gasoline container.
   CAUTION:

   Clean all of the following areas before performing any disconnections in order to avoid possible contamination in the system:

   • The fuel pipe connections
   • The hose connections
   • The areas surrounding the connections
   NOTE:

   If relieving the fuel pressure for the fuel pressure gauge installation and removal, it is NOT necessary to proceed with the following steps.

10. Disconnect the J 34730-1A from the fuel rail service port.
11. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline container.
12. Install the fuel rail service port cap.
13. Install the engine cover, if required.
14. Tighten the fuel fill cap.