Category Archives: SPN

Series 60 DDEC VI Troubleshooting – Section 128 SPN 4077 Fuel Line Pressure Sensor Circuit Fault

Series 60 DDEC VI Troubleshooting – Section 128.1 SPN 4077/FMI 3, 4 or 14

Series 60 DDEC VI Troubleshooting – Section 126 SPN 3798 – Proportional Valve Bank 2 Circuit

Series 60 DDEC VI Troubleshooting – Section 126.1 SPN 3798/FMI 4

Series 60 DDEC VI Troubleshooting – Section 127 SPN 3720 – Ash Level Above Normal

Series 60 DDEC VI Troubleshooting – Section 124.4 SPN 3695/FMI 19

Series 60 DDEC VI Troubleshooting – Section 125 SPN 3719 – Soot Level Above Normal

Series 60 DDEC VI Troubleshooting – Section 125.1 SPN 3719/FMI 0, 15,16,or 31

Series 60 DDEC VI Troubleshooting – Section 124.3 SPN 3695/FMI 14

Series 60 DDEC VI Troubleshooting – Section 124 SPN 3695 (CPC) – DPF Regen Mux Switch Messages Not Operating Normally