Honda Car Forum

i am trying to do a swap from a jdm h22a engine. I own a 99' prelude and wondering what year H22a will fit directly into my engine w/o no splicing of the harness or modifications...I just want to drop the h22 into my car, plug and play and go. I did some research and a 92-96 will fit but requires some modifications of the ecu and sensors(which i dont like doing), is there a h22a 97+ year obdII that will just drop in and use my existing ecu and harness or do i have to change a few things around to make it work with my 99 lude?H22a is the jdm..h22a4 is usdm in which i have in my motor...I am asking will a JDM h22a motor directly fit into my car w/o any tampering with anything

The H22A is the stock engine for the prelude.

The H22A is the stock engine for the prelude.

there might be a slight difference. it was a couple years ago that i did any prelude work, but as i recall we ran into a knock sensor issue with the h22a. you will need to keep your usdm knock sensor. only reason for this is the connector is different on the jdm harness.

YES it will. You just have to make sure its OBD II not OBD I. Cause if you don't you will need to buy a conversion harness to make it work. The h22a will directly drop in into any prelude I just did my swap a few weeks ago my 93 Lude. MY h22a was OBD I so it just wired right up. All OBD II H22a are 97 and up.































www.skunk2.com

got my 98 from eBay for $4200 in great condition last year so dont pay over that

I think it might be a slight difference in size