Section 15
SPN 656
This SPN indicates the injector #6 cylinder needle control valve is not operating normally.
| DD15 Fuel System Technician's Guide - DDC-SVC-MAN-0037 |
| Generated on 10-13-2008 |
DD 15 – Section 15 SPN 656
Section 15
Detroit Diesel Engine Troubleshooting
Detroit Repair Manuals