I appear to be having the same exact problem, verbatim, as Lorenzo did. Fixed gasket, replaced upper intake manifold with revised Dorman part, but when attempting to drive, CEL with codes p1860/p0753/p0758, as well as virtually no movement from car. Any suggestions as to a fix? One of you suggested another 12v wire that gets power when ignition is on - seems to be good in theory - but if I wanted to fix it another way, are there any other options?
Sorry for the necropost, but I've been trying to diagnose this problem for a couple days now, and this is the ONLY similar situation that I found with my google-fu.