Spn 520342 Fmi 17 - When it’s supposed to, the hydrocarbon fuel dozer is plugged or blocked, the hydrocarbon fuel metering valve is malfunctioning, or a few other less likely culprits. My experience was with a different code, 3226 fmi 20. I've only been driving a 2025 dd15 cascadia since february last year. I've tried to read as much. We just purchased a 2025 cascadia with a dd15. Can anyone tell me what these codes mean. Spn 520702 fmi 4 spn. 521049 & 521052 are codes telling you that the fault light is on. 520342 is not coming up. I would address the code regarding the def quality first. You can try to perform a parked, manual. I am getting a spn 102 fmi 17 oc 2 code on the fl lcbu. Fl says it's a cummins issue, cummins says they can't identify what code is. Does anybody here know. Just wait for the regen to finish and see if the derate goes away. That code is for low nox conversion efficiency. It means that your def system is not doing what it is supposed to and. I am not seeing a spn 520342 fmi 17 fault in troubleshooting manual for epa 07, 10 or ghg14. Looking at manual for ghg17 don't see it either. Can you confirm the fault again.
When it’s supposed to, the hydrocarbon fuel dozer is plugged or blocked, the hydrocarbon fuel metering valve is malfunctioning, or a few other less likely culprits. My experience was with a different code, 3226 fmi 20. I've only been driving a 2025 dd15 cascadia since february last year. I've tried to read as much. We just purchased a 2025 cascadia with a dd15.