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H23 to H22A4 Swap Problems

 
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Old 05-16-2010, 02:25 PM
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H23 to H22A4 Swap Problems

I blew up my 95 Prelude H23, crank snapped in half.

So I bought 98 H22A4, installed it, hooked everything up, and it cranks, but doesn't start.

Checked spark and there is none, can't hear the fuel pump either.

I'm using the H23 harness, computer, and distributor/coil.

What could be causing these issues? Thanks.
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Old 05-16-2010, 02:28 PM
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Re: H23 to H22A4 Swap Problems

I think you will need the H22A4 ECU , some of the harness and the distributor.
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Old 05-16-2010, 02:43 PM
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Re: H23 to H22A4 Swap Problems

What part of the harness? Does it need to be spliced in?

The plugs for the distributor are different though. Will the ECU plug right in?
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Old 05-16-2010, 02:52 PM
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Re: H23 to H22A4 Swap Problems

I can't say for sure. If I am right ... H23 is with OBD1 and H22A4 is with OBD2 , so it won't plug. You can use some adapter to fit it. Let's someone who has done it to say.
Yes, a part of the harness ( this was in my case H23 to H22A ) pretty sure you will be needing it too.
Yes, it does need to be spliced .
For the distributor I can't give any advice.

I can just say - Search in google for this SWAP. You will find many information about it.
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Old 05-16-2010, 03:49 PM
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Re: H23 to H22A4 Swap Problems

Pretty sure you will need to use the OBD1 distributor and wire up your VTEC. Not positive though about the distributor though.
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Old 05-16-2010, 03:59 PM
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Re: H23 to H22A4 Swap Problems

We have the OBD1 distributor (from the H23)

The wiring harness from the H23

The coil from the H23

Any more details we can have?

I've heard some things about the ECU ground might not be connected, which is at the T-Stat housing, I couldn't find a ground though.
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Old 05-16-2010, 06:04 PM
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Re: H23 to H22A4 Swap Problems

Alright here's the deal. The H23 doesn't have the same timing as the h22 if I remeber corectly. You need a OBD1 VTEC dizzy which the H23 does not have. Now with that said, you ECU from ya H23 should run the motor, but very lean, and it would lack alot of power + no VTEC recommend a P14. Now that should get you spark. As for ya other issue no ideas other than a blown fuse some were maybe?
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Old 05-16-2010, 06:09 PM
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Re: H23 to H22A4 Swap Problems

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recommend a P14.
Did you mean a P13? That's the H22 ECU.
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Old 05-16-2010, 06:21 PM
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Re: H23 to H22A4 Swap Problems

sry my bad lol... P13 yes.... p14 if u just want to have a running motor
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Old 05-16-2010, 08:00 PM
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Re: H23 to H22A4 Swap Problems

Its not the ecu thats the problem, though it IS a problem. I ran my h22a4 with my h23 ecu for a week ( keep it low in rpms, )with no problems until I got my p13.
If you plan on staying relatively stock, the p13 will be plenty. However if in the future you are going to mod your engine, I would recommend a chipped p28 or p72 with a basemap for your engine.
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Old 05-17-2010, 11:43 AM
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Re: H23 to H22A4 Swap Problems

You might as well just get a chipped P28 now and get it over with instead of a P13 unless you plan on staying stock.
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Old 05-17-2010, 12:19 PM
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Re: H23 to H22A4 Swap Problems

chipped p28 ftw.
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Old 05-17-2010, 01:23 PM
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Re: H23 to H22A4 Swap Problems

Chipped P28's are cheaper than stock P13's anyway.
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Old 05-17-2010, 01:31 PM
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Re: H23 to H22A4 Swap Problems

why dont you just get the H22 harness and ecu like you should have done to start off. it would make thigs soooooo much esier.
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I agree with camshafted on this one.

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The only thing realistic about The Fast and the Furious is that the DSM breaks in the first race!
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Old 05-17-2010, 01:34 PM
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Re: H23 to H22A4 Swap Problems

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why dont you just get the H22 harness and ecu like you should have done to start off. it would make thigs soooooo much esier.
But bro...cutting corners is sooooo much more fun.
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Old 05-17-2010, 01:41 PM
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Re: H23 to H22A4 Swap Problems

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But bro...cutting corners is sooooo much more fun.
oh yeah... forgot about that. you're right. I should have remembered that getting an f22 wire harness would not have been NEARLY as much fun as doing my frankenstien build... blood sweat and tears and alot of headaches are a blast!!! hahaha

do it right the first time and save yourself money and time.
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Originally Posted by HardKnoxBB2 View Post
I agree with camshafted on this one.

My Build thread (F22/H23)

The only thing realistic about The Fast and the Furious is that the DSM breaks in the first race!
94 Civic EX - Totalled
89 Civic Hatch (fidanza flywheel, excedy clutch, intake, exhaust, short shifter, tein drop coils, D16ZC) -Sold
89 CRX (Stock) - Sold
94 Civic EX - Totalled
92 Prelude Si - Blown Motor
96 Chevy S10 (3inch lift kit, tinted windows, sound system, sunroof, ballin!) - Sold
96 Ford Explorer A.K.A: Chopsmobile (If you drive it you will know why I call it the Chopsmobile) - Blown Tranny
91 Honda Accord (Stock) - DD
99 Hyundai Elantra - Sold
99 Ford Taurus - doin it...
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Old 05-17-2010, 02:58 PM
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Re: H23 to H22A4 Swap Problems

Sometimes doing it the right way involves blood, sweat, and tears. lol
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Old 05-17-2010, 03:17 PM
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Re: H23 to H22A4 Swap Problems

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Sometimes doing it the right way involves blood, sweat, and tears. lol
.. and snivels
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Old 05-17-2010, 03:47 PM
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Re: H23 to H22A4 Swap Problems

Haha yup.
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Old 05-17-2010, 10:07 PM
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Re: H23 to H22A4 Swap Problems

well i got a lot of **** for my prelu but i will prolly get a chipped ecu and use the h22 distributor lol but i want to keep obd1 cuz obd2a and b both suck and i have obd1 not sure exactly which a p13 or p14 and i have a few ob 2's but i got alot of time in this damn thing
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Old 01-15-2011, 11:08 PM
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Re: H23 to H22A4 Swap Problems

i have a 1992 Honda civic hatch si with a h22a4 swap skunk2 chipped p28 ecu it ran great then the distributor baring went out so i bought a new on but cant figure how to wire it in i have read all the post and threads cant figure it out please help us out
i have checked all wires and matched colors i took it all apart i checked everything any one please help
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Old 01-16-2011, 04:05 AM
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Re: H23 to H22A4 Swap Problems

use stock harness, h22 obd1 dizzy, swith out your injectors (use obd1 injectors) phearable.net ecu $175, wire up vtec and you should be ready to go.
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