B6.7 CM2450 B155B Fault Code: 1883 | SPN: 3251 | FMI: 2Aftertreatment 1 Diesel Particulate Filter Differential Pressure – Data Erratic, Intermittent, or Incorrect

by DPFDELETE-TUNER | Feb 19, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 1883PID: S324SPN: 3251FMI: 2/2LAMP: AmberSRT:    The aftertreatment diesel particulate filter differential pressure sensor is reading an erratic value.     Possible reduced engine performance. Circuit...

B6.7 CM2450 B155B Fault Code: 1881 | SPN: 3251 | FMI: 4Aftertreatment 1 Diesel Particulate Filter Differential Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source

by DPFDELETE-TUNER | Feb 19, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 1881PID: S324SPN: 3251FMI: 4/4LAMP: AmberSRT:   Low signal voltage or open circuit detected at the aftertreatment differential pressure sensor circuit.     Possible reduced engine performance. Circuit...

B6.7 CM2450 B155B Fault Code: 1879 | SPN: 3251 | FMI: 3Aftertreatment 1 Diesel Particulate Filter Differential Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source

by DPFDELETE-TUNER | Feb 19, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 1879PID: S324SPN: 3251FMI: 3/3LAMP: AmberSRT:    High signal voltage detected at the aftertreatment differential pressure sensor circuit.     Possible reduced engine performance.   Circuit Description...

B6.7 CM2450 B155B Fault Code: 1867 | SPN: 412 | FMI: 2Exhaust Gas Recirculation Temperature – Data Erratic, Intermittent, or Incorrect

by DPFDELETE-TUNER | Feb 19, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 1867PID: P412SPN: 412FMI: 2/2LAMP: AmberSRT:    The EGR temperature sensor is reading an erratic value at initial key ON or while the engine is running.     Possible reduced engine performance. Circuit...

B6.7 CM2450 B155B Fault Code: 1866 | SPN: 411 | FMI: 2Exhaust Gas Recirculation Differential Pressure – Data Erratic, Intermittent, or Incorrect

by DPFDELETE-TUNER | Feb 19, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 1866PID: P411SPN: 411FMI: 2/2LAMP: AmberSRT:    An error in the EGR delta pressure signal was detected at initial key ON or the sensor failed the autozero test.     Possible reduced engine performance....

B6.7 CM2450 B155B Fault Code: 1864 | SPN: 3227 | FMI: 2Aftertreatment Outlet Oxygen Sensor – Data Erratic, Intermittent, or Incorrect

by DPFDELETE-TUNER | Feb 19, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 1864PID: SPN: 3227FMI: 2/2LAMP: AmberSRT:    The aftertreatment outlet NOx sensor reading is not valid.     None on performance. Circuit Description The aftertreatment outlet NOx (nitrogen oxides) sensor is...