Been observing a high idle condition for almost a year now and I've chased EVERYTHING mechanical and electrical that I (and the FSM) can think of, save for the ECU itself. My truck starts and drives just fine; it's only the idle that's weird. I'm starting to wonder if there's something starting to go in my ECU, but even that is just what I've ended up at through process of elimination.
Hoping someone here has a known good ECU I could possibly borrow temporarily and see if there's any difference at all.
Hoping someone here has a known good ECU I could possibly borrow temporarily and see if there's any difference at all.
