I have a set of robogrip pliers with the rubber boots that fit over the top. Took a lot of work, but I managed to get them all out. I hadn't loc-tited them in though. If you decide to try, don't take the locking allen-head thingy out of the adjusting nut. Keep them in order, and when you go to put them back in, just torque them back down and they should end up in the exact same position.

 

Those codes are cam sensor comes. pull it out and make sure you did not dink it w the cam. or if you took it out that the wiring is good and it is seated properly.