Installed new crown OPDA. Rotated engine so alignment hole lined up, put in plastic pen, removed old unit. Put pin back in new unit, installed it runs fine. Now I have a check engine light that that code says it's the cam censor. 05 LJ 4.0 5-speed. Reset computer, unplug eg battery for 2 hrs. Code keeps coming back. Now what to I do ? Also Cruze control won't turn on.