Cam Position Sensor SES Wont Go Away

[Hawkeyes]

I have the Peake R5/FCX-3 code reader & used to to diagnose the SES warning. Code came up as OF 72 (Camshaft position sensor, Cyl#5-8). So I bought the FEBI-Bilstein replacement - both of them - and replaced 2 old CPS with 2 new CPS. Now my SES light is back on & when I use the code reader it comes up as OF 71 72, meaning both Camshapft position sensors, Cyl#1-4 AND Cyl#5-8. When I reset the MIL it only goes away for a few miles, then comes back with same codes. I pulled the battery cable & let sit overnight to reset the computer, but the problem wont go away. It also seems a little sluggish off the line, but could be my imagination.

What did I do wrong? How do I get more information?

Thanks,
Hawkeyes

PS - Im absolutely certain the new CPS are the correct ones, it is the part number that supercedes old style smaller diameter core.