Fuel Pressure Basic Check

WARNING: When performing the following procedure, be sure to observe PRECAUTIONS FOR FUEL SYSTEM SERVICE to reduce the risk of fire and personal injury.

Relieve fuel pressure in fuel feed line, see FUEL PRESSURE RELIEF PROCEDURE .
Remove fuel pipe stopper and disconnect fuel feed pipe from fuel delivery pipe, see FUEL HOSE DISCONNECTING AND RECONNECTING .
Connect special tools between fuel feed pipe (1) and fuel delivery pipe as shown in figure.
Special Tool
1. 09912-58442
2. 09912-58432
3. 09912-58490
4. 09919-45710
Fig 1: Connecting Special Tools Between Fuel Feed Pipe And Fuel Delivery Pipe
Courtesy of SUZUKI OF AMERICA CORP.
Check that battery voltage is 11 V or more.
Check fuel pressure using the following procedure.
If check result is out of specification, repair defective part.
1. a) Push engine switch to change ignition mode to "ON" and to operate fuel pump.
2. b) After 2 sec., push engine switch to change the ignition mode to "OFF".
3. Repeat Step a) and b) three or four times, and then check fuel pressure.
  Fuel pressure specification
  
  Standard: 375 - 385 kPa (3.8 - 3.9 kgf/cm ² , 54.4 - 55.8 psi)
  
  (With fuel pump operating and engine stopped)
Relieve fuel pressure, see FUEL PRESSURE RELIEF PROCEDURE .
Remove special tools from fuel delivery pipe and fuel feed pipe.
Connect fuel feed pipe to fuel delivery pipe and install fuel pipe stopper.
With engine stopped and ignition mode in "ON", check for fuel leaks, see FUEL LEAKAGE CHECK PROCEDURE .