since the vacuum line routing in the hf looks like this
http://i75.photobucket.com/alb...g.jpg
http://i75.photobucket.com/alb...2.jpg

and the vaccum line routing it he si looks like this
http://www.we-todd-did-racing....D.jpg

how would i go about this conversion? would i need the fast idle on the back of the si intake manifold?

 

no you don't.

 

I just did this, put an A6 into a stock HF, with the Si knuckles and brakes. Everything drops in, you just need to rewire the fast idle solenoid thing on the back of the manifold. One wire (I think it's black/yellow or something) is the +12V and splices into the one on the one next to it, and the other you have to run to B2 on the PM6, which is the same as the wire for the shift light on the HF.

 

basically i dont care about the shift light thingy. and the egr is out, not putting that in again and what? draw me something on paint for the fast idle thing.

 

Found it.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">Next is the fast idle control solenoid valve (F-I-C-S-V), which is mounted on the back of the Si intake plenum, near the EACV. it's plug uses 2 wires: black/yellow and a blue. Black/Yellow (later referred to as B/Y) is a 12V + and routes to the B/Y from the EACV plug. The Blue wire goes to pin B2 on the ECU. B2 is currently connected to the green/yellow wire from the "shift up light" in the guage cluster. The plug for this wire contains a green/orange and a yel/red wire. It is under the driver's side of the dash, connected alongside the fusebox with a white plug. Cut the green/yellow wire from the plug on the harness and splice in the blue wire from the Fast idle control solenoid valve, with the new wire going toward the ECU. Don't connect the F-I-C-S-V wire to the plug under the dash, or weird stuff will happen with your shift light! The "shift up" light is now disconnected (YAAAAAA!!!) and the green/yellow wire on the plug under the dash now hangs bare. F-I-C-S-V wiring is now complete. </TD></TR></TABLE>

 

ok that makes more sense...the only thing left to do is get a ficv.

 

Should be one on the Si manifold...