Suzuki 2000 Grand Vitara SQ416, Service Manual

Page: 614 / 729

YH4
GRAND
VITARA
6E2-26 ENGINE AND EMISSION CONTROL SYSTEM (H25 ENGINE)
FUEL INJECTOR
On-Vehicle Inspection
1) Using sound scope (1) or such, check operating sound of injec-
tor when engine is running or cranking.
Cycle of operating sound should vary according to engine
speed.
If no sound or an unusual sound is heard, check injector circuit
(wire or coupler) or injector.
2) Disconnect connector from injector, connect ohmmeter be-
tween terminals of injector and check resistance.
Resistance of injector: 10 – 14 at 20
_
C (68
_
F)
If resistance is out of specification, replace.
3) Connect connector to injector securely.
Removal
1) Relieve fuel pressure in fuel feed line referring to “Fuel Pressure
Relief Procedure” in “ENGINE” section.
2) Remove throttle body intake collector, refer to “THROTTLE
BODY REMOVAL” in this section.
3) Disconnect fuel feed hose (1) and fuel return hose (2).
4) Disconnect vacuum hose (4) and fuel return hose from fuel pres-
sure regulator (5).
5) Remove fuel feed pipe (8) and fuel connect pipe (7) from delivery
pipes (6) (right and left).
CAUTION:
A small amount of fuel may be released when it is from
delivery pipe.
Place a shop cloth under delivery pipe so that released
fuel is absorbed in it.
6) Disconnect connector (3) from each injector.