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21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1922 PID: SID 324 SPN: 3251 FMI: 0 Aftertreatment Diesel Particulate Filter Differential Pressure- Data Valid But Above Normal Operating Range- Most Severe Level

Circuit DescriptionThe engine aftertreatment system monitors the soot load in the aftertreatment diesel particulate filter. Under normal operating conditions, the...

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1923 PID: SID 334 SPN: 3482 FMI: 3 Aftertreatment Fuel Shutofff Valve 1 Circuit- Voltage Above Normal or Shorted to High Source

Circuit DescriptionThe aftertreatment fuel shutoff valve is used to disable the fuel supply to the aftertreatment system. Component LocationThe aftertreatment...

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1924 PID: SID 334 SPN: 3482 FMI: 4 Aftertreatment Fuel Shutoff Valve 1 Circuit- Voltage Below Normal or Shorted to Low Source

Circuit DescriptionThe aftertreatment fuel shutoff valve is used to disable the fuel supply to the aftertreatment system. Component LocationThe aftertreatment...

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1925 PID: SID 334 SPN: 3482 FMI: 2 Aftertreatment Fuel Shutoff Valve 1 – Data Erratic, Intermittent, or Incorrect

Circuit DescriptionBefore active regeneration of the aftertreatment diesel particulate filter, a diagnostic test on the system is performed. The aftertreatment...

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1926 PID: SID 332 SPN: 3480 FMI: 2 Aftertreatment Fuel Pressure Sensor- Data Erratic, Intermittent, or Incorrect

Circuit DescriptionThe aftertreatment fuel pressure sensor is used to monitor the fuel pressure into the aftertreatment system. The engine control...

21 August, 2025

0 comments

Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1927 PID: SPN: 3480 FMI: 3 Aftertreatment Fuel Pressure Sensor Circuit- Voltage Above Normal or Shorted to High Source

Circuit DescriptionThe aftertreatment fuel pressure sensor is used to monitor the fuel pressure into the aftertreatment system. The engine control...

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