I took the back of the phasers off to look for broken vanes inside. Leaving one screw in that holds apring tension The chains had three black links in them. When I took it apart it had blew a head gasket. I put 12 volts on the vvt solenoid and it moves free. The phaser is the only thing I can think of. Since it was showing this code before and after. Would a bad phaser on passenger side make it run rough at idle and be hard to start? When I turn the phaser bolt the front of the phaser will turn a little. Is that normal? I just don’t want to tear it down change phaser and then have to do it again to time it again