Alright I got my FCD in and I think that I hook it up under the hood on the passenger side but am not 100% positive. Also there are 2 wiring harnesses that are not marked. Are they different or no? I mean does it matter which one goes to what? Thanks alot.

 

pull out the plug on the pressure sensor plug it into the fcd then plug the fcd into the pressure sensor

 

Where exactly is it?

 

Its the little black box attached to the front of the pass. side strut tower, right? Plugs in the bottom? Thanks.

 

yup thats it

 

Thanks got it. Wish all mods were that cheap and easy

 

anybody know which wires are which on the boost sensor for an s4 t2. i need to wire my fcd in but it doesnt have the handy harness

 

Go to www.fc3s.org or www.iluvmyrx7.com and download the Factory Service Manual in PDF format for free. You just need the Wiring Diagrams chapter for now.