The Cummins fault code 2754 troubleshooting document is a 4-page factory diagnostic reference for the Cummins ISM and ISX CM871 (2007-09) engine platform, covering particulate filter inlet pressure (SPN 81, FMI 16). This fault code is logged when engine particulate filter inlet pressure is above the normal operating range at a moderately severe level, indicating soot is accumulating in the diesel particulate filter faster than normal. This page summarises what the manual contains so a technician can confirm it matches the code before downloading.
Official document details
| Brand | Cummins |
| Model coverage | ISM & ISX CM871 (2007-09) |
| System / group | ISM CM871 (2007-09) / DTCs |
| Circuit | ISX and ISM Aftertreatment System |
| Fault identifiers | SPN 81 · Lamp AMBER · FMI 16 |
| Source | TruckFaultCodes.com (© 2017) |
| Pages | 4 |
| File size | 0.1 MB |
| Format | |
| Language | English |
Cummins fault code 2754 overview
This fault code is logged when engine particulate filter inlet pressure is above the normal operating range at a moderately severe level, indicating soot is accumulating in the diesel particulate filter faster than normal. The ECM estimates soot load from the aftertreatment differential pressure sensor and calculated soot output. Verify the ECM calibration is correct.
The document lists possible causes including:
- Boost leaks in the charge-air cooler plumbing
- A malfunctioning variable geometry turbocharger or EGR valve
- A malfunctioning in-range EGR differential, boost, or barometric pressure sensor
- A cylinder misfire or over-fueling
Document table of contents
- Description
- Shop Talk
- Component Location
- Troubleshooting Steps
Applicable truck models covered
This procedure applies to Cummins ISM and ISX engines built on the CM871 (2007-09) electronic control platform, as fitted by truck makers using this Cummins driveline. The aftertreatment diesel particulate filter is in the exhaust and installed by the OEM. For wiring, connector, and CPL detail, refer to the Cummins official engine support site or the OEM service manual.
Who needs this Cummins fault code 2754 manual
Fleet technicians and workshop owners diagnosing high particulate filter inlet pressure on ISM or ISX CM871 engines use this reference to follow the factory step order instead of guessing at the diesel particulate filter circuit. The full PDF is available in the DiagTechPro manuals library, and a free account is required to download.
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