This Cummins fault 1718 document is a troubleshooting PDF for Engine Misfire for Multiple Cylinders diagnostics. It explains how the ECM detects high or low cylinder contribution at idle, what conditions set the fault, and how technicians validate the repair with INSITE™.
Official Cummins fault 1718 document details
| Brand | Cummins |
|---|---|
| Model coverage | ISX11.9 CM2250, ISX15 CM2250, QSL9 CM2250, QSB6.7 CM2250; file group lists ISB6.7 CM2250 (2010-12) |
| System/Group | DTCs; Engine Misfire for Multiple Cylinders Circuit |
| Publication no. | Not stated; associated bulletin numbers include 4022250, 2883445, 4022256, and 4022255 |
| Year/Revision | Unknown; last modified 11-Jun-2010 and 26-Jan-2011 |
| Pages | 8 |
| 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
- FAULT CODE 1718 – Engine Misfire for Multiple Cylinder – Condition Exists
- 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 – Perform diagnostic tests
- Guided Step 3 – Check ECM calibration and clear fault codes
Applicable truck models
This document applies to Cummins CM2250 engine coverage shown in the extract, including ISX11.9 CM2250, ISX15 CM2250, QSL9 CM2250, and QSB6.7 CM2250 references in the associated procedures table. The file metadata also places it under ISB6.7 CM2250 (2010-12) DTCs, but the visible procedure text specifically names the engines above and the fault code 1718 multiple-cylinder misfire routine. See official engine and service information at Cummins.
Who needs this Cummins fault 1718 manual
Workshop owners, diesel mechanics, and fleet technicians need this Cummins fault 1718 manual when a CM2250 engine logs SPN 1322 FMI 31/31 with rough idle, low power, smoke, or a suspected multiple-cylinder misfire. It is useful for checking fuel-system fault codes, injector trim codes, cylinder cutout results, ECM calibration revision, and fault clearing conditions.
The procedure directs the technician to connect the INSITE™ electronic service tool, read active and inactive fuel-system fault codes, verify the engine complaint at low idle, high idle, and snap throttle, then compare injector trim codes with Engine Dataplate information on QuickServe™ Online. If trim codes are wrong, the document points to Procedure 006-026; if the cutout test isolates a damaged injector, it directs replacement using the associated injector procedure. If misfire is not isolated to an injector, the technician is told to check other causes such as valve lash out of adjustment, cylinder damage, valve damage, cylinder head or gasket damage, extreme camshaft wear, or a mistimed air compressor.
For repair completion, the document explains ECM calibration revision checking and the conditions needed to make the fault inactive. The engine must be operated under the clearing conditions, including idle validation, before the CHECK ENGINE lamp or MIL behavior can be confirmed.
Full PDF 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 Calterm Version 5.16 – Advanced ECM Control and Precision Tuning for Cummins Engines
Cummins INSITE 9.3 – The Essential Diagnostic Tool for Cummins Engines
Cummins InCal CE – The Calibration and Configuration Tool for Cummins Engines
