All warmed up, doing some logging, I changed up the low altitude timing and FRP tables. I am running along on the highway and notice the truck is staying mostly in the transient table (appears). BTW, this truck is dpf deleted.
Next thing I see, timing goes from -2 to my 9 degrees at a slow rate, over a 10-20 sec period. Simultaneously, the pressure changed as well. This was low load, steady hiway cruise.
I pulled over without shutting down, then took off again, and the old parameters were back. Weird.
My question is, what defines when "transient" operation occurs, vs the other tables? I could find no trigger, but it was consuming the morning, nothing "transient" about it really.