h22a type s in 93 prelude si - Honda Prelude Forum

braker89 · 03-24-2011, 07:10 AM

im loking into swapping the jdm h22a type s obd2 engine out of a 97 into my 93 si (obd1), i already swapped a jdm f22b into it when i got the car... please help me into giving me an idea of the troubles i might run into and the parts that i will be looking at needing to get and to properly do the obd2 engine to obd1 car conversion... thanks

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'94 prelude s-usdm h23a1
'93 prelude si-jdm f22b

drummerboy · 03-24-2011, 11:15 AM

I used a jumper harness, but for the opposite (obd1 motor, obd2 car). Heres a list off the top of my head.

-ecu jumper harness
-obd2 engine
-ecu*

* - With the ecu, you have a few options.

OBD1 ecu, tuned to work with the new motor. You may have to swap the oil pump and figure out some distributor stuff, but this is the easiest to tune and manage.

OBD2 ecu, this would probably be easy to swap because you could then just use the obd
2 harness too. plug and play. But im not sure the interior harness would match up.