Shutting down under operation. No Active Codes/Faults but only does it once it reaches operation temperature. I will return to it in the morning as it will be cold, so I plan on running key on/engine off test first, then fire her up and have it record data. The first few attempts it would not force Regen or any other "running test" using laptop, but was able to achieve Regen but shut off, with no codes or faults. Operator tells me it started over a year ago, and it would last about 4hrs but now its minutes. Anyone else dealt with this???
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