FUEL INJECTOR
ON-VEHICLE INSPECTION
1) Using sound scope or such, check operating sound of injector
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, preform B-2 FUEL IN-
JECTOR AND ITS CIRCUIT CHECK in this section.
1. Sound scope
2. Injector
2)
Disconnect coupler from injector, connect ohmmeter between
terminals of injector and check resistance.
Resistance of injector : 10 – 15
If resistance is out of specification, replace.
3) Connect coupler to injector securely.
REMOVAL
1) Relieve fuel pressure according to procedure described in Sec-
tion 6.
2) Disconnect battery negative cable at battery.
3) Remove air cleaner outlet hose referring to Section 6A.
4) Remove intake manifold stiffener.
5) Disconnect fuel injector couplers.
6) Remove fuel delivery pipe bolts.
7) Remove fuel injector(s).
CAUTION:
A small amount of fuel may come out after removal of
fuel injectors, cover them with shop cloth.
1. Fuel delivery pipe
2. Fuel injector
3. Grommet
4. O-ring
5. Cushion
INSPECTION
WARNING:
As fuel is injected in this inspection, perform in a well
ventilated area and away from open flames.
Use special care to prevent sparking when connecting
and disconnecting test lead to and from battery.
6E1-58
ENGIINE AND EMISSION CONTROL SYSTEM