Just recently fixed a code 31 by replacing the AFM, ran great after that, had no problems. Until the other day, was driving steadily at around 2k revs, my foot didn't move, but then the car started kind of like bogging for a few seconds. It'd drop maybe 100 revs then back up, then repeat a few times. Kind of like something was being blocked, didn't sound very good either. Was driving at around 20 vac according to gauage when it happened, so wasn't applying that much throttle (just enough to be at 2k revs in whatever gear, 3rd maybe [auto]) Did it again the other day as well and would like to know what's causing it before it gets worse.
No codes and the 7mgte was freshly rebuild less than 2000km ago.
No codes and the 7mgte was freshly rebuild less than 2000km ago.