Fuel Pressure Basic Check

Relieve fuel pressure in fuel feed line. Refer to Fuel Pressure Relief Procedure .
Disconnect fuel feed hose from fuel delivery pipe.
Connect special tools between fuel feed hose (1) and fuel delivery pipe as shown in figure, and clamp hoses securely to ensure that no leaks occur during checking.
Special Tool

(A): 09912-58442

(B): 09912-58432

(C): 09912-58490

Fig 1: Connecting Special Tools Between Fuel Feed Hose And Fuel Delivery Pipe
Courtesy of SUZUKI OF AMERICA CORP.
Check that battery voltage is 11 V or more.
Measure fuel pressure as follows.
1. a) Turn ignition switch to ON position to operate fuel pump.
2. b) After 2 sec., turn it 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 , 54.3 - 55.8 psi) (With fuel pump operating and engine stopped)
  
  If measured pressure is out of specification, repair or replace defective part.
Relieve fuel pressure. Refer to Fuel Pressure Relief Procedure .
Remove special tools from fuel delivery pipe and fuel feed hose.
Connect fuel feed hose to fuel delivery pipe and clamp it securely.
With engine stationary and ignition in switch ON position, check for fuel leaks.