WebFeb 9, 2024 · I have a 2009 T-800 with cummins isx cm 871 code 1921. Will not clear, cleaned dpf. everything is good just will not clear. Also now the truck will go above 1500 … WebJan 25, 2024 · 01/03/2024 - Due to Cummins software changes, removed ROA test (previously step 2) DESCRIPTION This document will guide the user through resolving frequent regen issues on vehicles equipped with an ISB 6.7. SYMPTOM(s) Diagnostic Trouble Code(s) & Dashboard Indicator Light(s): DTC/Light Description SPN 5397 FMI …
Clearing FC 1922 Cummins 6.7L ISB - Diesel Technician Society
WebApr 26, 2024 · • Use the recommended Cummins® electronic service tool or equivalent to read the fault codes. Specification • If the fault code is active or inactive with more than one count within the last 25 engine operating hours and no other fault codes have been logged, then a plugged or restricted aftertreatment DPF has been detected. Linked Solutions WebCummins ISX Codes 1900-2000 1921 Aftertreatment Particulate Filter Differential Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level 1922 Aftertreatment Particulate Filter Differential Pressure - Data Valid but Above Normal Operational Range - Most Severe Level raymond beltran porterville
Cummins ISX15 Electrical System Equipment Technical Service Bulletins
WebDiagnostic Fault Codes For Cummins Engines Applies to Engine Models QSB T2, QSC T2, QSL T2, QSM11, QSX15, QSK19, QSK23, QST30, QSK45/60/78 Note: These fault … WebHere are all the Cummins ISX engine fault codes available for the Cummins CM871 ECM. These codes pertain to the ISX engines built between 2007 and 2010. ... 1921 Aftertreatment Particulate Filter Differential Pressure - Data Valid But Above Normal Operating Range - Moderately Severe Level ... WebJul 25, 2024 · Hey guys have a 08 kenworth cummins isx cm871. Keep getting fault code 1981. Truck get up to temp to regen, going down road regens fine. Then soot level goes to normal. Two minutes later goes into protected mode with this code. Diff pressure never drops below 10.44 Throws light but truck still runs fine. Any thoughts ? I’m stumped. raymond bennion