Check Engine codes
 

I am throwing 2 codes every now and then, and when i scan them. it comes up as golw pulg circiut b/ and turbo sens low circualtion input... and ideas where to start on fixin this... i blew the intake gasket a while back and that seems to be when this problem started, and i recently changed all the intake gaskets. and problem is still there
.... any info is helpful thanks