Does the y7 engine harness has 2 plugs for the o2 sensors? Im asking this because the y8 harness has 1 and the other is located on the cabin harness. Also ik the iacv issue but how do I fix it. Should I just sell my y8 mani and swap to y7?

 

Y7 harness has both O2 sensor plugs.

 

what kind of manifold do i need to use with the y7? Can i just buy the y7 manifold and hook it up if i buy the ecu and harness

 

You can run a Y7 manifold or an automatic Y8 manifold if using a Y7 ECU.