Suzuki Wagon R Manual page 1292

6E1-10 ENGINE AND EMISSION CONTROL SYSTEM
6) Start engine and warm it up to normal operating temperature.
If engine doesn't start, turn ignition switch ON to operate fuel
pump and after 2 seconds turn it OFF. Repeat this 3 or 4 times
and then check fuel pressure.
NOTE:
Check that battery voltage is 11 V or more before operating
fuel pump.
7) Measure fuel pressure under each of the following conditions.
CONDITION
At specified idle speed
With fuel pump operating
and engine at stop
Within 1 min. after engine
(fuel pump) stop (Pressure
reduces as time passes)
If measured pressure doesn't satisfy specification, refer to
"DIAGNOSTIC FLOW TABLE B-3" and check each possibly
defective part. Replace if found defective.
8) Relieve fuel pressure, referring to Section 6-1.
9) Remove fuel pressure gauge, hose & 3-way joint after remov-
ing air chamber case.
10) Connect fuel feed hose to throttle body and clamp it securely.
11) Install air chamber case.
12) With engine "OFF" and ignition switch "ON", check for fuel
leaks.
FUEL PRESSURE
2
0.9 – 1.4 kg/cm
90 – 140 kPa
12.8 – 20.0 psi
2
1.6 – 2.1 kg/cm
160 – 210 kPa
22.7 – 29.9 psi
2
Over 0.9 kg/cm
90 kPa
12.8 psi