ok so first of fI have a 90 Si EF and I'm going off of a PR3 and P72 wiring diagram, on the P72 pin (A17 PNK/BLU IAB -IAB Solenoid-), where does it connect to the PR3? I can't find the pin that it connects to, also this is going to sound dumb but what is IAB?

 

pr3 doesnt not have an IAB .. only P72 gsr and P13 h22a carry those ... thats your secondary butterflies. If you have a gsr in your EF and want to keep your secondaries functional then use an MSD rpm activated switch/

greg

 

ok hold on I worded that wrong, I'm swapping a C1 into the EF and I'm just using the PR3 wiring diagram as referance since I'm repinning my stock harness, what I need to know is where do I hook up the IAB on the stock harness since I'm going with a P72 ECU?

 

so you converted your EF interior harness to 92-95 ? or o you know tha tthe P72 won't plug intot he EF harness ? or is someone making you a harness adapter ?

 

I'm making a harness using my old harness and I'm just sliping the wires together get what I'm saying?