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TM 9-2320-360-34-1
INJECTOR TEST
(1) Turn ENGINE switch to OFF.
(2) Disconnect injector drive line (wire no. 611 thru
618 depending on cylinder) from injector
identified by SID.
(3) Disconnect injector drive line and return line
from a nearby injector that is operating
properly.
(4) Remove injectors (para 4-2) from cylinder
identified by SID and from cylinder in which
drive line and return line were disconnected.
(5) Swap injectors. (Install injector (para 4-2)
identified by SID in cylinder that was firing
properly. Install injector that was operating
properly in cylinder that was misfiring.)
(6) Clear codes on DDR.
(7) Start engine (TM 9-2320-360-10) and warm
to normal operating temperature or until
CHECK ENGINE indicator lights.
(8) Stop engine (TM 9-2320-360-10).
(9) Read inactive codes on DDR.
Check terminals at both 5-way, injector harness
connectors (both harness and ECM sides) for damage;
bent, corroded and unseated pins or sockets.
Check for any of the following problems:
Air in fuel or low fuel pressure
Sticky valve
Cold fuel
Low battery charge
Broken spring or armature on the injector
Problems in the charging system (loose alternator
belt, etc.) or bad grounds
Signs of insulation wear on injector harness.
Change 3 2-62.7
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