I'm having some engine problems. I had high oil pressure due to putting too much oil in and my car wouldn't turn back on. I had to get it towed back to my house, where I ran a computer diagnostic test on it. The results said that I had cylinder 1,5,6 codes pop up. I haven't replaced the cylinder yet but I changed all 6 plugs and replaced the vacuum hose that split. When ran again a cam shaft timing code came up and when I start my car it has a very low idle and sounds terrible. I need to run another scan on it, but the cylinder codes never came back up on the second scan. Could the cam shaft sensor problem cause the issues I have or does it sound like another problem. I also heard my timing chain could be the issue. Has anyone else had problems like this?