How are you aligning the cams?
Once you start messing with the VCT Gear it can be a hassle and it's a hassle that many have run into.
Myself and another member here in our area had to re-do the timing 3-5 times before getting that code gone. And that's with cranking the engine by hand several times, letting some of the oil out of the cam a bit, changing out the VCT Sensor, adjusting it back and forth. It's a very picky tamper and there is no real secret, than to just make sure you do it correctly, align it right and crank it a few times by hand and check over and over again.
It's tedious, but it's necessary to get it right.