My dads 2016 cummins 2500 has been having cold start/running issues with 9500 miles on it, he took it to the dealer. Of course it "ran perfect" for them while they had it for a whole week... But they updated it to this "181904fz flash quick learn 4696 wdi" any info on what this update is? They said they don't know. Ram/mopar won't tell us what is in this update... [emoji848]
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Hi lpfm1990,
Based on the information in your post I believe this is the TSB that was applied on your father's vehicle:
"NUMBER: 18-015-17 REV. A
GROUP: Vehicle Performance
DATE: March 10, 2017
SUBJECT:
Flash: 6.7L Diagnostic And System Improvements
SYMPTOM/CONDITION:
The following Diagnostic Trouble Codes (DTCs) have been changed from a one trip fault
to a two trip fault:
• P0421 - Catalyst 1 Efficiency Below Threshold Bank 1.
• P2280 - Air Flow Restriction / Leak Between Air Cleaner And MAF.
• P203C - (Diesel Exhaust Fluid) Reductant Level Sensor Circuit Low.
• P208D - (Diesel Exhaust Fluid) Reductant Pump Control Circuit High.
A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find the following DTCs set in the PCM memory:
• P1451 - Diesel Particulate Filter System Performance.
• P229E - NOx Sensor Circuit - Bank 1 Sensor 2.
• P0128 - Thermostat Rationality Improvements.
• P2281 - Air Leak Between MAF and Throttle Body.
• P218F - Reductant No Flow Detected.
• P0218 - Transmission High Temperature Operation Activated (68RFE Only).
• P0868 - Line Pressure Low, MIL Action (68RFE Only).
• U110E - Lost Ambient Temperature Message.
• P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit
Intermittent (setting when the block heater is plugged in).
In addition to addressing the above DTCs, the following powertrain system
improvements/enhancements are also included in this software release:
• **Improvement to correct engine feels like low or reduced power.**
• Engine Noise Improvements.
• Engine Hesitation Improvement.
• Improved Engine Fuel Economy.
• Reduction in engine noise during regeneration at idle.
• 68RFE Transmission Overall Shift Quality Improvements.
• Test results fix for partial range misfire (68RFE Only).
• Ambient Air Temperature Improvements.
• Stationary Desoot with wiTECH Fix.
• OBD Misfire Monitoring Improvement (68RFE Only)."
Please let me know if you have any additional questions!
Andrea
Ram Social Care Specialist