This 1911 fault code DTCs document is a troubleshooting manual for injector metering rail 1 pressure faults on Cummins electronic engines. It explains fault code logic, possible causes, INSITE™ checks, high-pressure fuel safety steps, and guided repair paths for the listed engine families.
Official 1911 fault code DTCs document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250; ISC8.3 and ISL9 CM2250; ISX15 CM2250; ISX11.9 CM2250 |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Injector Metering Rail 1 Pressure Circuit |
| Publication no. | Not shown in extract |
| Year/Revision | Last Modified: 20-Nov-2009, 11-Jun-2010, and 20-Jul-2010 |
| Pages | 38 |
| File size | 0.5 MB |
| Format | |
| Language | English |
Document table of contents
- FAULT CODE 145-fc1911
- Fault Code Path Selection
- Overview
- Circuit Description
- Component Location
- Conditions for Running the Diagnostics
- Conditions for Setting the Fault Codes
- FAULT CODE 1911 (ISB) – Injector Metering Rail 1 Pressure – Data Valid But Above Normal Operational Range – Most Severe Level
- Action Taken When the Fault Code is Active
- Conditions for Clearing the Fault Code
- Shop Talk
- Troubleshooting Fault Code 1911 (ISB)
- Guided Step 2D – Inspect the fuel pressure relief valve for tampering or wrong part number
- Guided Step 5D – Inspect the fuel pump actuator for damage
- Guided Step 6 – Check the ECM to ground strap
- Guided Step 7 – Check ECM calibration and clear fault codes
- FAULT CODE 1911 (ISC, ISL, ISX) – Injector Metering Rail 1 Pressure – Data Valid But Above Normal Operating Range – Most Severe Level
- Associated Procedures
- Fuel Pump Gear Pump
- Fuel System Diagnostics
- Guided Step 3B – Check the fuel inlet restriction at the OEM connection and gear pump
Applicable truck models
This file covers Cummins ISB6.7 CM2250 diagnostics and also includes the ISC, ISL, and ISX path for Fault Code 1911. The associated procedure table identifies ISC8.3 and ISL9 CM2250, ISX15 CM2250, and ISX11.9 CM2250 applications, with service references such as Procedure 005-025, Procedure 005-236, Procedure 006-020, Procedure 006-071, Procedure 019-117, Procedure 019-008, and Procedure 019-032. See the manufacturer at Cummins official website.
Who needs this 1911 fault code DTCs manual
Mechanics, diesel diagnostic technicians, and workshop owners need this 1911 fault code DTCs manual when rail fuel pressure is above commanded pressure and the amber CHECK ENGINE lamp or MIL is active. It is useful for checking air in fuel, inlet restriction, fuel rail pressure sensor accuracy, fuel pressure relief valve condition, fuel pump actuator damage, ECM grounds, and ECM calibration status with INSITE™ electronic service tool.
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