This Cummins 2881 troubleshooting manual covers Fault Code 2881 for low aftertreatment fuel pressure diagnostics. It explains the aftertreatment fuel pressure sensor circuit, fault conditions, possible causes, INSITE™ service tool checks, and guided repair steps for the aftertreatment fuel injector system.
Official Cummins 2881 troubleshooting manual document details
| Brand | Cummins |
|---|---|
| Model coverage | ISX11.9 CM2250 and ISX15 CM2250 are listed in the extracted procedure tables; file grouping also references ISB6.7 CM2250 (2010-12) / DTCs. |
| System/Group | Aftertreatment Fuel Injector System / DTCs |
| Publication no. | Bulletin numbers shown for associated procedures: 4022250 and 2883445 |
| Year/Revision | Last Modified: 11-Jun-2010 and 06-Jul-2010 |
| Pages | 11 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- Conditions for Running the Diagnostics
- Conditions for Setting the Fault Codes
- Action Taken When the Fault Code is Active
- Conditions for Clearing the Fault Code
- Shop Talk
- Associated Procedures
- Troubleshooting Steps
- Guided Step 1 – Check the fault codes.
- Guided Step 2 – Check the aftertreatment fuel system.
- Guided Step 3 – Check the fuel filter restriction.
- Guided Step 4A – Check if an ECM calibration update is available.
- Guided Step 4B – Disable the fault code.
Applicable truck models
This PDF applies to Cummins CM2250 engines named in the extract, including ISX11.9 CM2250 and ISX15 CM2250, with Fault Code 2881: Aftertreatment Fuel Pressure Sensor – Data Valid But Below Normal Operational Range – Least Severe Level. The file metadata also places the document under ISB6.7 CM2250 (2010-12) / DTCs, but the sampled pages identify the troubleshooting tables and procedures for ISX11.9 CM2250 and ISX15 CM2250. For current OEM information, visit Cummins official website.
Who needs this Cummins 2881 troubleshooting manual manual
This document is useful for diesel mechanics, fleet technicians, and workshop owners diagnosing low fuel pressure in the aftertreatment fuel system during active diesel particulate filter regeneration. It supports checks for plugged or restricted aftertreatment fuel supply lines, aftertreatment fuel shutoff manifold debris, pressure side fuel filter restriction, gear pump pressure, ECM calibration revision, and fault clearing with INSITE™ electronic service tool.
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