This document is a code 2311 DTCs troubleshooting manual for the electronic fuel injection control valve circuit. It explains the fuel pump actuator circuit, diagnostic conditions, fault effects, connector checks, resistance tests, ECM calibration checks, and clearing steps used with INSITE™.
Official code 2311 DTCs document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250, with associated coverage for ISC8.3 and ISL9 CM2250, ISX15 CM2250, ISX11.9 CM2250, QSL9 CM2250, and QSB6.7 CM2250 |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Electronic Fuel Injection Control Valve Circuit |
| Publication no. | 4022254 for ISB6.7 CM2250; associated bulletins listed include 4022257, 4022250, 2883445, 4022256, and 4022255 |
| Year/Revision | Last Modified: 11-Jun-2010 and 20-Jul-2010 |
| Pages | 14 |
| 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 fuel pump actuator.
- Guided Step 3 – Check the engine harness.
- Guided Step 4 – Check ECM calibration and clear fault codes.
Applicable truck models
This file applies to Cummins CM2250 engines listed in the procedure tables, including ISB6.7 CM2250 and related ISC8.3 and ISL9 CM2250, ISX15 CM2250, ISX11.9 CM2250, QSL9 CM2250, and QSB6.7 CM2250 applications. The fault description is for SPN 633 FMI 11/31, where the fuel pump actuator circuit resistance is too high or too low, or an intermittent connection has been detected. Manufacturer reference: Cummins official website.
Who needs this code 2311 DTCs manual
Workshop technicians, fleet mechanics, and diagnostic tool users need this code 2311 DTCs manual when an amber CHECK ENGINE lamp or MIL appears with rough running, low power, rail pressure mismatch, disabled regeneration, or EGR closure. It is useful before replacing the fuel pump actuator because the procedure checks connector condition, actuator resistance, short-to-ground status, engine harness resistance, intermittent harness faults, and ECM calibration.
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