ELECTRONIC TECHNICIAN (ET) TROUBLESHOOTING - Continued
CORRECTIVE ACTION - Continued
The Injector Solenoid Test reported that one or more cylinders are OPEN.
Record the cylinder numbers for the injectors that indicate OPEN.
a. On EMCP set ENGINE CONTROL switch to OFF/RESET. Set Battery
Disconnect Switch to OFF. Set DEAD CRANK SWITCH to OFF.
A strong electrical shock hazard is present if the electrical power is not removed from the ECM.
The electronic unit injector system uses 90 to 120 Vdc. Failure to comply can cause injury or
death to personnel.
b. Disconnect engine wiring harness connector ENG-P300 from Injector
Harness ENG-J300 (Figure FO-2, sheet 2).
Fabricate a jumper wire that is long enough to jumper two connector pins at
the connector for the injector harness. Crimp connector sockets to each end
of the jumper wire.
d. Insert one end of a jumper wire onto the pin of the supply wire of the suspect
injector. Insert the other end of the jumper wire onto the pin of the return wire
of the suspect injector. For example, if injector 5 is the problem injector,
insert the jumper onto terminal 5 and into terminal 8 of the connector for the
injector harness. Ensure that the ends of the jumper wire are not in contact
with any of the other terminals in the connector. Refer to Table 7.