Section 31
SPN 3663
This SPN indicates that the injector #5 cylinder amplifier control valve is not operating normally.

| DD15 Fuel System Technician's Guide - DDC-SVC-MAN-0037 |
| Generated on 10-13-2008 |
Detroit Diesel Engine Troubleshooting
Detroit Repair Manuals
This SPN indicates that the injector #5 cylinder amplifier control valve is not operating normally.

| DD15 Fuel System Technician's Guide - DDC-SVC-MAN-0037 |
| Generated on 10-13-2008 |