Hello everyone I am new to the forums as I have a ? about putting a skunk2 manifold and TB onto a D16Y7. Now I know I will have to convert 3 to 2 wire for my iacv and I need an obd1 manual ecu. however, I need help running hoses to the new manifold. I know the one coming off the PVC valve goes into one of the top ports on the s2 manifold, the back port goes to the brake booster, the little nipple at the back of the very bottom can be used as a boost reference, the little nipple at the top of the manifold goes to the FPR. on the throttle body itself there are a couple of nipples which I have capped off (is that a good idea?) what I thought I could do was run the hose coming from the pipe above the PCV box into the new 2 wire iacv and the other nipple on the iacv back into the little nipple on the manifold. But when I tried that after plugging in the p06 ecu I had the car kept revving up and down and kept dying out. here are the pics I have. If someone can please help me it would be much appreciated I've been stuck on this for 3 days I know most people just extend the hoses and keep using the d16y7 tb but I don't want to use mine since the idle screw is broken and when I'm at a complete stop it idles at 2500rpm.

 

The IACV coolant lines are only used to circulate warm coolant to the IACV to keep it from sticking in sub-freezing temps. It doesn't really matter where you pull the coolant from or send it back to. If you want to use them, just hook up the pair of lines that went to the original TB mounted IACV. Orientation does not matter. Or, since you live in FL where it never gets super cold, you would be fine leaving the IACV coolant lines off and just looping the hose from the water pipe fitting (above the black box) to the intake manifold fitting under intake runner #4.

 

Will I still need to leave the 2 wire iacv clipped into the iacv just to be safe then?

 

You still want to use IACV, so yes, keep it plugged in. I'm just saying that it will function just fine for you without the coolant lines.

 

Ok, thank you, tmmr I will try that and post again if I had success or failure depending on if I can get the 2 wire pigtail in time thank you.

 

Hello I just came back inside I was out since 2 pm trying to figure it out I ran the loop as you said and the regular way and that didn't work the car kept revving up and down then when you start driving it acts as if it is hitting the rev limit at 2500rpm me and my buddy tried 3 P28's and 2 P06's my stock P2E and a P2P none worked we tried a different TB and different IACV that didn't work and we tried different sensors none work we made sure there weren't any vacuum leaks at all so I have officially given up and decided I'm just going to sell the car after I put back on the stock y7 manifold. But I would like to thank you for your help as this was my first time ever on honda forums.