P0128 randomly pops up.
It isn't a daily occurrence, it popped today but last time it popped was over a month ago, at least then it was cold outside (on my drive to PA) but today I am in FL and it isn't cold by any means. Just a little head scratcher.
One thing to note though, Depending on what you have your fan settings set to, you will have to adjust your closed loop stuff and coolant tables to work better for those settings. AS usually they are targeting 176 and higher temps to be working.
On the HEMIs we see it constantly, from people in cooler climates. Simple enough to change the thresholds for setting the code, as Jesse mentioned.
Of course its been a bit warmer so I haven't had it again since I posted this. As for never been seen on a GM I've seen it about 4 times now over the last two years.






