Sburn, I'm not Bill, but I DO try to help. Do you recall what your CHT was (since you are monitoring it) when you got the ECT light and you went into limp mode? Or, did I misunderstand and it WAS 160 when this happened? If it was in the normal range, your truck clearly did not overheat, but something made it "think" it did.
The trouble code you got was: "P061B Internal Control Module Torque Calculation Performance", which is helpful as hell, isn't it?
I can't believe your customized settings had anything to do with this.
Ah dear, I see I'm a day late and a dollar short again, Bill's already on it. I should have thought of corrupted files. But, of greater interest to me now, is why are files becoming corrupted now and then?
Even worse, now that I read a few posts back, I see this DTC is a definite symptom. I must be losing it!
- Jack