TM 5-3805-291-23-2
FUEL INJECTORS AND WIRING HARNESS MAINTENANCE - CONTINUED
0187 00
ADJUSTMENT
WARN I N G
ECM emits high voltage. To prevent injury to personnel, make sure ECM is not powered and unit injector
solenoids are disconnected.
C AU T I O N
Operation of engine with improper adjustment of electronic fuel injector can reduce engine efficiency. This
reduced efficiency could result in excessive fuel usage and/or shortened engine component life.
N OT E
1.
Put No. 1 piston at top center position on compression
stroke (WP 0010 00).
2.
Cylinders 3, 5, and 6 can be adjusted with cylinder 1 at
TC compression stroke.
3.
Loosen jamnut (9).
4.
Turn adjustment screw (10) until screw makes contact
with electronic fuel injector (2).
5.
Turn adjustment screw (10) through 180 degrees in
clockwise direction.
6.
Tighten jamnut (9) to 41 + 7 lb-ft (55 + 10 Nm).
7.
Rotate engine in normal operating direction by 360
degrees. Cylinder 1 will now be at TC exhaust stroke.
8.
Cylinders 1, 2, and 4 can be adjusted with cylinder 1 at
427-C0444
TC exhaust stroke.
9.
Loosen jamnut (9).
10.
Turn adjustment screw (10) until screw makes contact with electronic fuel injector (2).
11.
Turn adjustment screw (10) through 180 degrees in clockwise direction.
12.
Tighten jamnut (9) to 41 + 7 lb-ft (55 + 10 Nm).
INJECTOR TRIM FILE
1.
Electronic Technician (ET) is used to load injector trim files into ECM.
2.
Injector trim files must be loaded into ECM if any of these conditions occur:
a.
An injector is replaced.
b.
ECM is replaced.
c.
"Injector Trim" is displayed below 268-02 diagnostic code on ET.
d.
Injectors are exchanged between cylinders.
0187 00-5
