Hello. Since Friday my V70 has been bouncing around again. He had it before. At that time I suspected the spark plugs. But now I can exclude them. Anyway, the problem is like an extreme early ignition. I orgle, the engine ignites too early and works against the starter. Then it needs some revolutions until the engine finally starts. Then it runs on 3-4 cylinders. The starter is really difficult. If the engine then turns over 4000u/min everything is chic. The next time it runs normally in the stationary gas. Can this be the camshaft sensor ? Andi