hi im abit concern ...you see im doing a h22 swap on a cb3 accord f20a8 sohc and i was told its straight plug in how do i know its a obdi and what to look for one more question :- whats the plug below the oil filter on the back of the h22a engine there towo plugs the knock senser is at the top or what .....? also i need the obd1 ecu pluggin for the h22a and the f20a8 engine any help ?