B6.7 CM2450 B155B Fault Code: 1993 | SPN: 4795 | FMI: 31Aftertreatment 1 Diesel Particulate Filter Missing – Condition Exists

by DPFDELETE-TUNER | Feb 19, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 1993PID: SPN: 4795FMI: 11/31LAMP: AmberSRT:    The aftertreatment diesel particulate filter in the exhaust system is not present.     Possible reduced engine performance. Circuit Description The engine...

B6.7 CM2450 B155B Fault Code: 1981 | SPN: 3936 | FMI: 15Aftertreatment 1 Diesel Particulate Filter System – Data Valid But Above Normal Operating Range – Least Severe Level

by DPFDELETE-TUNER | Feb 19, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 1981PID: SPN: 3936FMI: 0/15LAMP: AmberSRT:    The aftertreatment differential pressure has exceeded the maximum operating limits or the diesel particulate filter is plugged.     Possible reduced engine...

B6.7 CM2450 B155B Fault Code: 1922 | SPN: 3251 | FMI: 0Aftertreatment 1 Diesel Particulate Filter Differential Pressure – Data Valid But Above Normal Operating Range – Most Severe Level

by DPFDELETE-TUNER | Feb 19, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 1922PID: S324SPN: 3251FMI: 0/0LAMP: RedSRT:    The soot load of the aftertreatment diesel particulate filter has exceeded the recommended limits. Engine protection derate is enabled.     Possible reduced...

B6.7 CM2450 B155B Fault Code: 1921 | SPN: 3251 | FMI: 16Aftertreatment 1 Diesel Particulate Filter Differential Pressure – Data Valid But Above Normal Operating Range – Moderately Severe Level

by DPFDELETE-TUNER | Feb 19, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 1921PID: S324SPN: 3251FMI: 0/16LAMP: AmberSRT:    The soot load of the aftertreatment diesel particulate filter has exceeded the recommended limits.     Possible reduced engine performance. Circuit...

B6.7 CM2450 B155B Fault Code: 1887 | SPN: 3226 | FMI: 4Aftertreatment 1 Outlet NOx Sensor Circuit – Voltage Below Normal or Shorted to Low Source

by DPFDELETE-TUNER | Feb 19, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 1887PID: SPN: 3226FMI: 4/4LAMP: AmberSRT:    An internal circuit error has been detected by the aftertreatment outlet NOx sensor.     Possible reduced engine performance. Circuit Description The...

B6.7 CM2450 B155B Fault Code: 1885 | SPN: 3216 | FMI: 4Aftertreatment 1 Intake NOx Sensor Circuit – Voltage Below Normal or Shorted to Low Source

by DPFDELETE-TUNER | Feb 19, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 1885PID: SPN: 3216FMI: 4/4LAMP: AmberSRT:    An internal circuit error has been detected by the aftertreatment intake NOx sensor.     Possible reduced engine performance. Circuit Description The...