My R34 finally arrived recently and have been loving the drive, very happy with it. However, lately some warning lights have been appearing (TCSoff, SLIP, engine malf). A quick look in my manmual tells me that the traction control has switched to fail safe mode, but the symptoms and the timing seriously make me think otherwise.
It most regularly happens on the highway, sitting on the pretty much the same speed and revs for around 10 mins (110km/hr, 2700 revs). The engine malfunction light will come up and a second later the traction control lights come up. When this happens the engine power seems to drop, the tone changes from a smooth running engine to a kind of constant bubbly spluttery sound (make an engine sound, then flick your tongue in your mouth, kinda like that). Generally I can bring the tone back to normal by giving the accelerator a bit and getting it to boost again.
Anyone else had this problem before, or have an idea?