Is the overheating instantaneous our a slow creep? In for heating cus my truck wasn’t swapped by the last owners did I obviously didn’t do it.theres no plugs and no holes.so we are basically screwed

 

This what I wanted to know aside from introducing the non sai ecu to the new BCU what could possibly be a variance in the harness and the fuel trio they produced trucks In 2901 with either SAI or non SAI. Why is that so hard to get that awsner out of any of the major companies like rovers north lucky 8.i get that it’s not a common thing and it shouldn’t happen but come on ! What variance is there?? I don’t have ace? What serious difrence is there