Hello I have an 06 aveo manual transmission I have no problems it runs smooth but the check engine light came on and I took it to an autozone and it read for a camshaft position sensor or a crankshaft position sensor. The car has not had problems starting or running. I have no problems changing gears so I don't really know what is the best thing for me to do. should I replace both sensors or should i try with one first to see if that fixes the problem?