I have an obd0 b16a swap in my car...

... the IACV (idle air control valve) is bad and I need to replace it!

My question is...

... Are all b-series IACV's interchangeable? Can I use an obd1 IACV on my obd0 intake mani. or does it have to be obd0?

I tried searching and tried posting in the tech part of HONDA-TECH but didnt get any replies! Someone please help me!!!

 

they are not the same - different spacing on mounting bolts - OBD1 at top - OBD0 at bottom:

 

You can use a D16A6 or 90-91 LS IACV, they are both OBD-O and will bolt up to your B16A IM.

 

x2 , I just replaced mine with a 91 civic si iacv