I was getting a camshaft/crankshaft not correlating code for both camshaft sensors, and the crankshaft sensor. I replaced both camshaft sensors in hopes I wouldn't have to dig down to the crankshaft sensor. Car fires up and runs great, Still getting code on bank B camshaft sensor. The Bank A and crankshaft codes have disappeared. What else could be going on here? Vacuum leak? 2012 BMW 128i