digitalh3lix

how well would a H22A4 fit into a 93, 4th gen? from H23 to H22A4... with OBDII conversion. Any special fitments? has anyone done this?

ludedude48

bump


i want to see this

crj_lll

I have one in my prelude now. Runs great. I did not do the intall. I paid for it. I know I had to buy a p-13 to make it work right. I know that there had to be special wiring for the 2 O2 sensors the A4 since my '92 only had 1. Hope this helps

johnny five

I found a pic seems a little tight like its against the firewall

https://honda-tech.com/zerothread?id=962246

crj_lll

My Mechanic hates working on my car. He says it is the tightest ft he has ever seen in any honda that was nto cut. LOL

95ONE

Will anyone actually answer this?

Am I dumb for wanting to?


Whatever. Maybe he's actually asking this sincerely...

Same fit as the H23. (Identical Blocks on the outside if you didn't know) Intakes are almost completely Identical.

Wiring will be in the write ups from H23 to VTEC. I think it's now on page 2 of this forum.

Forbidden

I have an H22A4 in my 4th gen, you can see the writeup here: http://www.jrcormier.com/prelude/engineswap.php

You don't want to convert to OBD-II and you do not need the 2nd O2 sensor.

If you have any other questions you can email me, my email in in the contact page on my site.

Jesus_FR

What if i want to do the same, but keep my ECU (which is OBD1, and programmable) and OBD1 harness ? What is involved ?