He had been running the XRT with no problems. I downloaded the latest EFI updates to my blue box (that I only use for cummins) yesterday. I know Smarty was throwing the overhead for a long time. I wonder if there is a timer clearing routine that executes at some interval over and over to clear timers. In fact, when going back and forth with XRT and EFI Live to get the initial ECM read and initial tunes, the very last step in the XRT displays Clearing Timers. And I remember that H and S resets timers. Once the dinging starts on a trip it continues in any condition of driving. Then another trip and it dinged in the first ten miles on the freeway. One trip took over 50 freeway miles before it started dinging. I am reserving the "Because it gives us better mileage" as my answer to question two. So far my lovely wife gives me one of those looks when it goes off, but she hasn't started with "Why does it do that?" If she starts that it will soon be followed by "I don't understand why you are always messing up the truck" I think she may be putting up with the dinging because overall the truck is much more quiet than when it was tuned with the XRT. I will be making some side trips and will see if it occurs without towing at any point.
Once we disconnect and turn off the truck, the dinging does not occur driving the truck without the trailer in tow. And then when we get off the freeway and onto regular streets it dings every 5 to 6 miles. We were on the freeway right away as the campground was less than a mile from the freeway. The last tow it did it as soon as we got ten miles on the freeway towing. No CEL, no Lightning bolt, and I don't know if it goes away on it's own as I push the page button to get back to my how many miles to empty display.
SERVICE DEF SYSTEM SEE DEALER RAM 2500 FULL
Mine dings once at the same time "Catalyst Full Service Required" flashes up on the overhead. I have this particular truck in my shop till June 2nd if you need another one to test. It says "Service Required, See Dealer Now" Gives you two dings, stays up there for a few minutes then goes away. This was the first I had seen of it and I orginally thought it was the same as the first issue. We were towing my rig (blown trans at the drag races). I drove a customers truck back from Ennis Tx this last weekend. It only shows up when going down the highway cruising at a constant speed. I have another customers truck that has a different oh message than the first one. The overhead issue I had here locally hasn't shown back up.
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