Cummins N14 STC, Celect, Celect Plus – Service Manual Engine Decelerates Slowly (CELECT™ or CELECT Plus™)

Symptom Tree  t041-155

This is symptom tree
Cause Correction

Electronic fault codes active or high counts of inactive fault codes

Refer to Section TF in the CELECT Plus™ Systems Troubleshooting and Repair Manual, Bulletin 3666130, or Section TF in the CELECT™ Systems Troubleshooting and Repair Manual, Bulletin 3666084.

 

Throttle linkage or return spring is binding

Check the fuel pump throttle linkage and return spring for free movement. Adjust if necessary.Refer to the OEM service manual.

 

Electronic control module (ECM) calibration is malfunctioning

Verify that the electronic control module (ECM) calibration is correct. Check the calibration revision history for applicable fixes to the calibration stored in the ECM. Refer to the calibration history spreadsheet on QuickServe™ Online Internet Website or the INCAL™ calibration CD. Compare the calibration stored in the ECM with the engine rating and the Control Parts List (CPL), Bulletin 4021328. If necessary, calibrate the ECM. Refer to Procedure 019-032 in Section 19 of the CELECT™ Plus Systems Troubleshooting and Repair Manual, Bulletin 3666130, or the CELECT™ Systems Troubleshooting and Repair Manual, Bulletin 3666084.

 

Injector is malfunctioning

Perform the Automated Cylinder Performance test. Replace injectors as necessary. Refer to Procedure 006-026 in Section 6.

 

Fuel pump pulsation damper is cracked

Inspect the fuel pump pulsation damper. Replace the pulsation damper if necessary. Refer to Procedure 005-031 in Section 5.

 
Last Modified:  22-Feb-2012