The device under the intake is the purge solenoid for the evap canister. One hose should go to the canister the other to the manifold. IIRC that hose should loop up to a port in the center of the intake manifold on top right in front of the throttle body. It sticks straight up. If that one is taken just run a T off of it.

 

 

 

http://txtup.co/iVJPd

ALSO there is a device under the intake on the right hand, rear side that has a vac hose and some wires running to it, but its not hooked up to a vac hose, and IO don't recall unhooking it, nor is there a port to hook it up to

 

 

sounds like the Purge valve - could be your Evap code problem (some older soobs have that in the back, some under the hood - I dunno which years so, I might be wrong)

 

Hose should go to the intake IF it's the purge valve - not sure if it's routed to near the throttle body or exactly where.....maybe dig around at opposedforces.com for a diagram for your car.

 

DOH - didn't see the next page before replying

Edited June 5, 201312 yr by 1 Lucky Texan

um try tighting the ground bolt on intake ps side also check main engine conectors on engine to car harness like to not plug in all the way also check alt voltage is not to high when i get cars with mutiple codes is uhsaly somthing biger going on sensers do not fail that easy and mutiple frailed sensers very very rare car ecu having to learn no dont think so i put in engines dayliy and its ether right or wrong. Should be runing as good as its going to as soon as you start it.

I would say with the exception of the purge valve thing this is solved

 

the fuel trims look a lot better