Hi all,

New to posting here but have been reading posts for a long time.

I have checked through the archives for a definative list of additional plugs required to add to the engine loom of an F20A2 EDM 1990 Accord (manual) to allow the fitment of an H22 JDM 1993 Prelude (auto) and still haven't quite got there.

I have both looms for both cars, and from that alone I know some plugs will need to be lengthened and some will need to be added. Obviously the vtec plugs ect will need to be added, what about the EGR setup, is this only necessary for emissions testing or essential for smooth running?

I will be using the H22 JDM Prelude ECU but this is an auto, I have found through links from this forum to http://www.zdyne.com/ Which shows a procedure for changing the ECU from auto to manual, has anyone tried this? Any thing I should be aware of?

I have yet to find a reliable wiring diagram for the EDM 1990 Accord so if anyone has a link to a pdf that would also be a great help.


I know that a lot of you won't havey much experience with the EDM Accord setup but any help is apreciated, I am mechanically competent and have the good sense to use the internet as the amazing resource it is to answer most questions, but i'm sure you all understand that sometimes it's just best to ask for what you need!

Thanks in advance guys

Fireye81