832074A 4 Mercury STATOR

Introduction
New engine software has been released to add new features and correct a number of issues in the current versions of engine software. The new part numbers and the related applications can be found below. Do not perform any procedure in this Special Instruction until you read this information and you understand this information.Required Parts
Table 1
New Part Number Changes    
New Engine Software P/N     Applicable Machine Model     Effective Serial Numbers    
388-6399     336E, 568 LL     S/N:BZY00894-UP, ; S/N:BRB00219-UP, ; S/N:YEP0252-UP, ; S/N:YJX00106-UP    
374-6346     140M2, 140M2 AWD     S/N:R9G00141-UP, ; S/N:R9M00121-UP, ; S/N:M9D00784-UP, ; S/N:M9J00478-UP    
374-6348     160M2, 160M2 AWD     S/N:R9L00117-UP, ; S/N:R9T00111-UP, ; S/N:M9E00406-UP, ; S/N:M9K00420-UP    
386-1739     972K     S/N:Z4W00215-UP, ; S/N:PEM00290-UP    
386-1738     966K     S/N:TFS00347-UP, ; S/N:PBG00316-UP    
385-8165     D7E     S/N:TAN0046500465-UP, ; S/N:TJA00463-UP    
385-8110     D6T     S/N:GMK00476-UP, ; S/N:DTD00213-UP, ; S/N:SLJ00234-UP, ; S/N:KSB00353-UP, ; S/N:ZJB00355-UP, ; S/N:RCW00290-UP    
384-4445     349E     S/N:DGE00262-UP, ; S/N:TFG00410-UP, ; S/N:MPZ00289-UP, ; S/N:KFX00150-UP, ; S/N:KCN00218-UP, ; S/N:S3P00201-UP    
386-1740     980K     S/N:GTZ00136-UP, ; S/N:W7K00472-UP    
386-2955     740B, 740B EJ     S/N:T4R00471-UP, ; S/N:T4S00284-UP    
386-2956     735B     S/N:T4P00284-UP    
385-8109 (North America),386-3186 (Europe)     D8T     S/N:MLN00381-UP, ; S/N:FCT00275-UP    
385-1165     C9.3 Industrial ABC Tier 12" DPF     S/N:C9N846-UP    
385-1166     C9.3 Industrial ABC Tier 13" DPF     S/N:C9N890-UP    
385-1163     C9.3 Industrial 360HP Claas Lexion     S/N:C9N974-UP    
385-1159     C9.3 Industrial 300HP Claas Lexion     S/N:C9N966-UP    
385-1164     C9.3 Industrial 409HP Claas Lexion     S/N:C9N851-UP    
385-1160     C9.3 Industrial 320HP Claas Lexion     S/N:C9N849-UP    
384-9983     C13 Industrial 443HP Claas Lexion     S/N:KWJ1343-UP    
384-9981     C13 Industrial 500HP Claas Lexion     S/N:KWJ1344-UP    
384-9573     C13 Industrial ABC Tier     S/N:KWJ1359-UP    
384-9979     C13 Industrial DE Tier     S/N:KWJ1370-UP    
384-9982     C15 Industrial AB Tier     S/N:LDN1098-UP    
385-1168     C15 Industrial CD Tier     S/N:LDN1085-UP    
384-9572     C18 Industrial ABC Tier     S/N:BDN1133-UP    
384-9575     C18 Industrial C Tier (series turbochargers)     S/N:BDN1161-UP    
387-3053     C18 Industrial C Tier (series turbochargers)     S/N:BDN1333-UP    
384-9984     C18 Industrial C Tier (series turbochargers)     S/N:BDN1158-UP    
384-9574     C18 Petroleum     S/N:BDN1155-UP    Note: The following changes are being implemented in the above listed flash filesChanges Implemented in Flash Files
Issue
Low speed automatic regenerations may not perform adequately during conditions of high ash loading or high soot loading and cold ambient conditions. Due to the lack of air flow through the Diesel Particulate Filter (DPF), the inlet temps are not high enough to reduce the soot level in the DPF at the current engine speed max limit of 1400 rpm.Resolution
If ambient temperatures are less than −20° C (−4° F), maximum engine speed limit will increase during low speed auto regeneration or manual regeneration to 1600 rpm. Regeneration will de-activate if engine speed increases beyond 1650 rpm.Issue
The Aftertreatment Regeneration Device (ARD) flame detection temperature sensor can become fouled with soot build-up in some applications. When the sensor becomes fouled, the reading becomes inaccurate and the Electronic Control Module (ECM) believes that the regeneration system is not functioning properly. Event codes E1026 or E1025 may be active or logged when this problem is present.Resolution
A "lean burn" strategy has been implemented to modify the air/fuel ratio of the ARD at the end of a regeneration. The "lean burn" strategy increases the temperature at the flame detection temperature sensor, cleaning the soot build-up from the sensor.Issue
In some cases when Controller Area Network(CAN) communication is lost between the engine ECM and the ARD air valve controller. A 3472-14 diagnostic code can false trip soon after the loss of communication issue is resolved. False tripping could lead to unnecessarily replacing the ARD air valve controller.Resolution
Software corrected to not false trip the 3472-14 diagnostic code.Issue
When the engine idle shutdown feature is enabled and a Caterpillar Electronic Technician (ET) service test is being performed, the engine may shut down if the service test time is greater than the idle time required for engine idle shutdown.Resolution
Engine software will now ignore the engine idle shutdown request if a CAT ET service test is being performed.Issue
When idling the engine for extended periods of time in cold ambient conditions, condensation can build up in the NOx Reduction System (NRS) and freeze. The freezing can cause poor engine performance and various diagnostic and event codes.Resolution
A new elevated idle strategy is being implemented to address NRS freezing concerns. This strategy will elevate engine speed to 1600 rpm every 3 hrs when ambient air temperature is less than −18° C (−0.4° F). The engine will idle at 1600 rpm for 20 minutes. Running the engine at higher engine speeds promotes more NRS gas flow which can thaw any accumulation of ice.Issue
Regeneration history in CAT ET does not provide enough information to assess the quality and profile of the regenerations being performed by the ARD system.