CEL with code P2088 "camshaft position actuator A control circuit low (bank 1)

So i got two CELs and these codes appeared
P2088 "camshaft position actuator A control circuit low (bank 1)"

And also it had CEL P0234 "engine overboost condition" But that code never came back when i reseted the codes.

Where to start troubleshooting? I googled a "bit" and found that maybe it's the VVT solenoid for the code P2088
and that other code, P0234 could be a boost control solenoid?

Car has everything original except corksport stage II air intake, hpfp rebuilded,simons cat-back and corksport catted downpipe with racepipe. I'm waiting for roads to dry so i can install a tune.

 

After i installed engine mounts by damond motorsport and rear differential mounts by corksport, increased vibration loosened car cam sensor connector just a bit to engage CEL. I cleaned the connector from excess debris & sand and reconnected it tightly and didn't get any CEL after 30 miles, before it came after i entered to the highway, but it happens no more. Hope that was the issue.