TSB130159-093014

Fault Code 3167 or 1691 Caused by a Missing Poppet in the EcoFit™ Aftertreatment Fue... Page 1 of 5
Technical Service Bulletin Number
TSB130159
Technical Service Bulletin
Subject
Fault Code 3167 or 1691 Caused by a Missing Poppet in the EcoFit™ Aftertreatment Fuel
Injector
Warranty Statement
The information in this document has no effect on present warranty coverage or repair
practices, nor does it authorize TRP or Campaign actions.
Contents
This document informs the field of a missing poppet in the EcoFit™ aftertreatment fuel
injector causing Fault Code 3167 or 1691.
This issue is isolated to the new EcoFit™ aftertreatment fuel injector design. The new
EcoFit™ aftertreatment fuel injector is susceptible to the inner poppet falling out due to a
worn retaining spring retainer. This situation can increase the probability of fouling that can
cause a high restriction of the injection of fuel into the aftertreatment system.
See Table 1 to reference the affected part numbers:
Table 1
Engine
Family
EcoFit™ Aftertreatment Fuel
Injector Part Number
EcoFit™ Aftertreatment Fuel Injector
Service Kit Part Number
ISX CM871
ISM CM876
5300987
4309454NX
5294110
4309349NX
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Table 1
Engine
Family
ISX 12
CM2250
ISX 15
CM2250
QSX11.9
CM2250
QSX15
CM2250
ISX12
CM2350
ISX15
CM2350
EcoFit™ Aftertreatment Fuel
Injector Part Number
EcoFit™ Aftertreatment Fuel Injector
Service Kit Part Number
• The engine control module (ECM) illuminates the amber CHECK ENGINE lamp and/or
the malfunction indicator lamp (MIL).
• Fuel injection into the aftertreatment system is not sufficient to perform active
regeneration of the aftertreatment diesel particulate filter.
Malfunctioned EcoFit™ aftertreatment fuel injectors will have a hole in the center of the
injection point. A normal EcoFit™ aftertreatment fuel injector will have a visible plunger
(poppet) at the center of the injection point.
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2/2/2015
Fault Code 3167 or 1691 Caused by a Missing Poppet in the EcoFit™ Aftertreatment Fue... Page 3 of 5
Missing Poppet - EcoFit™ Aftertreatment Fuel Injector
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2/2/2015
Fault Code 3167 or 1691 Caused by a Missing Poppet in the EcoFit™ Aftertreatment Fue... Page 4 of 5
Poppet - EcoFit™ Aftertreatment Fuel Injector
If the EcoFit™ aftertreatment fuel injector is missing the lower poppet, replace the
aftertreatment fuel injector.
Table 2
Engine Family
Engine Build Date
Engine Serial Number First
ISX15 CM2350 X101
6-Feb-14
79717919
ISX12 CM2350 X102
5-Feb-14
75026326
Document History
Date
2013-11-4
2014-5-8
2014-9-30
Details
Module Created
typo correction
none
Last Modified: 19-Jan-2015
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