Hello, the following problem occurs with our T30 2.5L Bj 05 with 136000km: If you start it cold, the speed goes to approx. 3000 turns, after a few minutes it starts to fluctuate, between 1600 and 2500 approx. during the ride this happens exactly when you are in the speed range. It accelerates normally, and over this speed it behaves also normal. However, if you get zb in the first gear to the 1600, so it raises the speed, so you can practically not drive under 1600 turns without giving gas. If it has these swings in the idle run, it has when the speed goes down ignition oscillators. It is not a fault in the control unit, and therefore the MIL is also nicht. According to the previous owner, Nissan has no idea what it could be, if the throttle flap would be dirty from the AGR valve. What do you think about it? I have nowhere found a petroler with which it is also so, and hope, here someone can help us before Nissan to exchange wild parts, which it will probably run out of Lam89.