Suzuki Grand Vitara XL-7 Service Manual page 65

ENGINE GENERAL INFORMATION (RHZ ENGINE WITH SINGLE-CONNECTOR ECM) 6-5
FUEL PRESSURE RELIEF PROCEDURE
Refer to "Fuel Delivery System Precaution" in Section 6E3.
FUEL LEAKAGE CHECK PROCEDURE
After performing any service on fuel system, check to make sure
that there are no fuel leakages as follows.
1) Turn ON ignition switch for 5 seconds (to operate fuel pump) and
then turn it OFF. Repeat this (ON and OFF) 3 or 4 times and ap-
ply fuel pressure to fuel line (till fuel pressure is felt by hand
placed on fuel return hose).
2) In this state, check to see that there are no fuel leakages from
any part of low pressure fuel system between fuel pump and in-
jection pump.
3) Check that there are no fuel leakages from any part of high pres-
sure fuel system between injection pump and fuel injector by
performing the procedure below.
(1) Start engine and warm up to normal operating temperature.
(2) Check fuel leakage after turning off ignition switch.
(3) Again, start engine and accelerate the vehicle up to 3500 rpm
with L range (AT) or 1st gear (MT). Then stop vehicle.
(4) Check fuel leakage after turning off ignition switch.