FE639 L4-3.9L DSL Turbo (1998)
Diesel MFI Pump Controller: Testing and Inspection
PRE-STROKE CONTROL INJECTION PUMP SYSTEM
Troubleshooting Procedure
The pre-stroke control type injection pump system has a trouble diagnosis function, this function is used for troubleshooting.
This means you have to read the diagnosis code memorized in the pre-stroke control unit, and carry out an inspection based on this code. There are two
ways of reading the code; with a multi-use tester, and without a multi-use tester.
In the case of trouble that does not have a diagnosis code, the normal 01 code is indicated, and it is necessary to carry out a check depending on the
situation. In this case, inspect the electric circuits and their relative devices.
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Inspection with multi-use tester
Special tools
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Inspection flow chart
