This Cummins 3383 EGR troubleshooting document is a service diagnostic PDF for Fault Code 3383 on CM2250 engines. It explains an EGR system fault where measured exhaust gas recirculation flow is higher than commanded, with INSITE™ checks, sensor inspections, harness tests, ECM calibration review, and fault clearing steps.
Official Cummins 3383 EGR troubleshooting document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250; associated coverage shown for ISC8.3 and ISL9 CM2250, ISX11.9 CM2250, ISX15 CM2250, QSL9 CM2250, QSB6.7 CM2250, and GX CM2250 |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Exhaust Gas Recirculation |
| Publication no. | 4022254 for ISB6.7 CM2250 associated procedures |
| Year/Revision | Last Modified: 11-Jun-2010; troubleshooting section Last Modified: 08-Dec-2010 |
| Pages | 15 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- Fault Code 3383: Engine Exhaust Gas Recirculation (EGR) System – Data Valid But Above Normal Operating Range – Moderately Severe Level
- 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 EGR differential pressure sensor and mounting surfaces for leaks or debris plugging.
- Guided Step 4 – Check the EGR delta pressure sensor and circuit.
- Guided Step 5 – Check the ECM and engine harness.
- Guided Step 6B – Disable the fault code.
Applicable truck models
This file is centered on Cummins ISB6.7 CM2250 DTC information and references shared diagnostic procedure coverage for ISC8.3 and ISL9 CM2250, ISX11.9 CM2250, ISX15 CM2250, QSL9 CM2250, QSB6.7 CM2250, and GX CM2250 engines. The fault applies to the Engine Exhaust Gas Recirculation (EGR) System, especially EGR differential pressure sensor flow measurement, EGR valve operation, VGT-related fault code screening, ECM connectors, engine harness checks, and ECM calibration code review. See the manufacturer at Cummins official website.
Who needs this Cummins 3383 EGR troubleshooting manual
Diesel technicians, fleet workshops, and truck repair businesses need this manual when an amber CHECK ENGINE lamp or MIL is linked to Fault Code 3383, SPN 3058, FMI 16. It helps confirm whether the cause is sensor port restriction, a leaking or stuck open EGR valve, a circuit response problem, damaged connector pins, engine harness faults, or calibration status.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
Related manuals library
Sản phẩm liên quan cho hãng này
Cùng brand theo taxonomy hiện có trong catalog WooCommerce.
Cummins INSITE 9.3 – The Essential Diagnostic Tool for Cummins Engines
Cummins Calterm Version 5.16 – Advanced ECM Control and Precision Tuning for Cummins Engines
Cummins InCal CE – The Calibration and Configuration Tool for Cummins Engines
