Hey all, I'm having some issues I haven't been able to pinpoint, the issue is intermittent and has been going on for sometime, during acceleration it will stumble and go down to 500 rpms like it wants to stall out but doesn't, when I put it in neutral it revs fine and doesnt stumble, it's throwing a camshaft position sensor code on bank 1 but will also throw a misfiring code at times, the problem is intermittent, any suggestions would be appreciated thanks