Perkins 1106D Troubleshooting Manual page 182

182
Troubleshooting Section
Illustration 68
Typical example of the electronic unit injector
Test Step 1. Check for Diagnostic Codes
That Are Related to this Procedure.
A. Connect the Perkins EST to the diagnostic
connector.
B. Turn the keyswitch to the ON position.
C. Check for logged diagnostic codes that are related
to this procedure.
D. Make a note of the logged diagnostic codes.
Expected Result:
Expected Result 1
One or more of the following diagnostic codes are
logged:
•
1-02 Cylinder #1 Injector Data Incorrect
• 2-02 Cylinder #2 Injector Data Incorrect
•
3-02 Cylinder #3 Injector Data Incorrect
•
4-02 Cylinder #4 Injector Data Incorrect
•
5-02 Cylinder #5 Injector Data Incorrect
•
6-02 Cylinder #6 Injector Data Incorrect
Expected Result 2
Three injectors that share a common supply indicate
a diagnostic code.
Note: Injectors 1, 2 and 3 share a common injector
driver circuit in the ECM. Injectors 4, 5 and 6 share a
common driver circuit in the ECM. If three injectors
that share a common supply indicate a diagnostic
code then this is probably caused by a faulty ECM.
Results:
•
OK – Result 1 One or more diagnostic codes are
logged. Proceed to Test Step 2.
•
OK – Result 2 Three injectors that share a
common supply indicate a diagnostic code.
Proceed to Test Step 3.
•
Not OK – No related diagnostic codes are logged.
STOP.
Test Step 2. Check the Faulty Cylinder
Numbers
A. Use the Perkins EST in order to make a note of
g01208822
the logged diagnostic codes.
B. Use the noted diagnostic codes in order to check
the cylinders for faulty injectors.
Expected Result:
The diagnostic codes indicate the cylinder numbers
that have faulty injectors.
Results:
• OK – No related diagnostic codes are logged.
STOP.
•
Not OK – The diagnostic codes indicate the
cylinder numbers that have faulty injectors.
Repair: Replace the faulty injectors.
Use the Perkins EST in order to program
the replacement injector trim files . Refer to
Troubleshooting, "Injector Trim File" for further
information.
Use the Perkins EST in order to clear the logged
codes.
Turn the keyswitch to the ON position.
Start the engine.
Use the Perkins EST in order to perform the "Fuel
System Verification - Test". If the cylinders indicate
"PASS", then the fault has been cleared.
Verify that the repair eliminates the fault.
STOP.
SENR9982