Doing H22 swap tomorrow need some help

bjorkmae · Sep 20, 2009

Doing an H22 swap tomorrow on my 98 accord. Using a OBD2 97 prelude engine I need to keep OBD2 for emissions so I am planning on running a 96 prelude computer. Will that work? I want to use a 96 prelude computer because it is OBD2, programmed for the H22 and the preludes didn't have a security chip in the keys in 96. Does anyone have the pinouts of a 98 4cyl 5 speed accord and the pinouts for a 96 5 speed prelude so I can verify? So ideas on this? I have a cut 97 prelude harness I can use if the plugs vary on engine sensors between the F23 and the H22.

bjorkmae · Sep 21, 2009

Ok so It looks like the prelude ecu is obd2a and the accord ecu is obd2b. So a conversion harness is needed or lots of splicing. I will just get the conversion harness if I can get it at the local speed shop tomorrow for $50 or less otherwise I got a full obd2a and obd2b pin out diagrams. 96 prelude ecus are rare and I could only find 3 in the entire country, so 97-01 non-sh ecu and matching key will be needed.

dreman · Sep 21, 2009

I went that route with a H22A4 using a P13-A12 96 Prelude vtec SI ecu. You will need the conversion harness for sure also look in my older thread for more info.

jaron001 · Sep 21, 2009

^ there is no h in vtec

dreman · Sep 21, 2009

Sorry I made a mistake I knew that lol.

x5carl3tMurd3rx · Sep 21, 2009

lol at dre.

jaron001 · Sep 21, 2009

lol its all good :coffee:

Drift · Sep 21, 2009

Ive done it, it works.

bjorkmae · Sep 21, 2009

Ok ordered a 96 prelude vtec ecu and a obd2b to obd2a harness adapter. Both should be here tomorrow. So the computer should be plug and play with now imobilizer key issues.

bjorkmae · Sep 21, 2009

dreman can you post a link to your old h22 swap thread. I searched by your user name and I could only find comments you made an another h22 swap but not your own.