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TM 9-2320-360-34-1
NOTE
Table 2-7 shows which injector is associated with each of the failure codes.
Table 2-7. Injector Identification
FIRING
CODE
ORDER
CYLINDER
71
1
1Left
72
2
3Right
73
3
3Left
74
4
4Right
75
5
4Left
76
6
2Right
77
7
2Left
78
8
1Right
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
code (71-78).
(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 code (71-78) and from cylinder in which drive line
and return line were disconnected.
(5) Swap injectors. (Install injector (para 4-2) identified by code (71-78) 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 historical codes on DDR.
INJECTOR HARNESS TEST
(1) Turn ENGINE switch OFF.
(2) Replace injector harness (para 4-3).
(3) Reconnect all connectors.
(4) Clear codes on DDR.
(5) Check mode 10 (INJ RESP TIMES) and
MODE 1 (ACTIVE CODES).
(6) Stop engine (TM 9-2320-360-10).
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