ok so i put a obd2 d16y8 into my 94 eg. everything is in except for the harness and vacuum lines. this is where im stuck i dont konw how to route my vacuum lines or harness and i dont know what to do about the distributor. i was going to use my eg dx harness and add the wires for vtec and repin the dizzy but im a little confused. should i just go and buy a 99 ex harness and a ecu conversion. also how do i wire up my vacuum lines where do they go? i need all the advice i can get help please i needed this car running like 5 days ago if.

 

power brake assist is one major vacuum line along with
charcol canister
exhaust gas recurcalation
positive cranckcase ventilation

those are them main ones that i know off the top of my head but im sure thiers more if yu would really like some help purchase a helms manual. I have never swapped an engine but i have performed head gasket swaps and the HELMs manual has helped me out the most.

 

The only thing I can think of is why didn't you just buy a d16z6 with a 92-95 ex/si harness and stay obd1. You are going to lose alot of tuning potential for future use going to obd2.

Buy a helms manual. Spend the 70.00 or so for one and they have a complete wiring diagrahm and vacuum info.
It is the same manuals that honda service centers stock for techs.

 

1. Keep your DX harness and keep that engine OBD1 by finding yourself an OBD1 P28 92-95 Si/EX ECU.

2. Repinning the dizzy is hella easy - the following pics are of my wife's old B16A2 swap in her 1992 Si hatch with the stock 92 Si HB D16Z6 engine harness - you can do the exact same to make your Y8 dizzy plug into your stock DX engine harness:









I'll be back w/more info later - right now it's lunch time!