MARUTI SUZUKI Zen Estilo 2018, Manual

Page: 227 / 788

1G-10 FUEL SYSTEM
1) Install injector and fuel pressure regulator to special tool
(injector checking tool).
Special Tool
(A): 09912M58421
2) Connect special tools (hoses and attachment) to pipes of
vehicle.
Special Tool
(B): 09912M58431
3) Connect special tool (test lead) to injector.
Special Tool
(D): 09930M88530
4) Install suitable vinyl tube onto injector nozzle to prevent fuel
from splashing out when injecting.
5) Put graduated cylinder under injector as shown.
6) Remove fuel pump relay.
7) To operate fuel pump and apply fuel pressure to injector,
connect two terminals of relay box using service wire as
shown in figure.
Caution
:
Check to make sure that connections made between
correct terminals. Wrong connection can cause damage
to ECM, wire harness, etc.
8) Apply battery voltage to injector for 15 seconds and measure
injected fuel volume with graduated cylinder.
Test each injector two or three times.
If not within specification, replace injector.
Injected fuel volume:
38.3 – 40.7 cc/15 sec. (1.29/1.35 – 1.37/1.43 US/lmp. oz/15
sec.)
9) Check fuel leakage from injector nozzle. Do not operate
injector for this check (but fuel pump should be at work). If
fuel leaks more than following specification, replace.
Fuel leakage: Less than 1 drop/min.