some H22 info PLZ!!!!
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From: Land Down, Under, Australia
some H22 info PLZ!!!!
simple question, (I hope)
I wanna swap a H23 from a 4th gen with a H22 Vtec. Are the 5th gen H22A's the same as the 4th gens?! I assume they are, but it would be nice to know for sure so i can broarden my search in car wreckers....
Thanks!
I wanna swap a H23 from a 4th gen with a H22 Vtec. Are the 5th gen H22A's the same as the 4th gens?! I assume they are, but it would be nice to know for sure so i can broarden my search in car wreckers....
Thanks!
Honda-Tech Member
Joined: Feb 2000
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From: Milwaukee, WI
Re: some H22 info PLZ!!!! (se93)
Hey, I was in the SAME situation. I blew up my H23, so I was looking for a H22a swap. I found an H22a4 for $1500, so I got that instead. It only had 15k miles on it! I would rather have a newer, low mileage motor than one from JDM land (it's a gamble with JDM motors, cuz you can find some seriously abused motors, or seriously babied motors), or an older USDM motor with 90k+ miles on it. 
I just re-used my H23a tranny (for future plans )
Anyways, there's a few things you need to change in the OBD-II H22a4 motor. The only thing OBD-II on the motor is the distributor and fuel injectors. Otherwise, everything else bolts up. I re-used my H23a distributor, which will allow me to adjust my timing. The H22a4 Dist doesn't.
Secondly, get some H22a1 fuel injectors. They are bigger, 310cc compared to 290cc from the H22a4. Also, more importantly, they are peak-and-hold injectors, while the H22a4 injectors are saturated. What this means is that if you're going to use the OBD-I P13 ECU, you need to run peak-and-hold injectors, or else you'll fry your ECU with the H22a4 injectors.
And depending on which year your car was assembled, it may already be wired with the VTEC wires. You'll need to doublecheck your wire harness by the ECU to verify if it is indeed already wired. I found out that my 95 Si already had them in when I ran the VTEC wires through the firewall, only to find out that there were already wires in the harness. I traced them to a connector in the engine bay, and wired it to there instead.
I used my H23a wire harness and connected everything to the H22a4. I only had one connector left over, right underneath the distributor. I left it off, since there was no check light. You'll also find that on the H22a4, there is a connector near the bottom of the timing belt cover. I left that off too, since I believe it had something to do with the H22a4's fixed timing. No check lights, so I'm not too worried about it.
Pretty easy swap, considering everything was in place already. OBD-I and OBD-II isn't all that different.
I just re-used my H23a tranny (for future plans )Anyways, there's a few things you need to change in the OBD-II H22a4 motor. The only thing OBD-II on the motor is the distributor and fuel injectors. Otherwise, everything else bolts up. I re-used my H23a distributor, which will allow me to adjust my timing. The H22a4 Dist doesn't.
Secondly, get some H22a1 fuel injectors. They are bigger, 310cc compared to 290cc from the H22a4. Also, more importantly, they are peak-and-hold injectors, while the H22a4 injectors are saturated. What this means is that if you're going to use the OBD-I P13 ECU, you need to run peak-and-hold injectors, or else you'll fry your ECU with the H22a4 injectors.
And depending on which year your car was assembled, it may already be wired with the VTEC wires. You'll need to doublecheck your wire harness by the ECU to verify if it is indeed already wired. I found out that my 95 Si already had them in when I ran the VTEC wires through the firewall, only to find out that there were already wires in the harness. I traced them to a connector in the engine bay, and wired it to there instead.
I used my H23a wire harness and connected everything to the H22a4. I only had one connector left over, right underneath the distributor. I left it off, since there was no check light. You'll also find that on the H22a4, there is a connector near the bottom of the timing belt cover. I left that off too, since I believe it had something to do with the H22a4's fixed timing. No check lights, so I'm not too worried about it.
Pretty easy swap, considering everything was in place already. OBD-I and OBD-II isn't all that different.
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Joined: Nov 2001
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From: Pegging the bling meter
Re: some H22 info PLZ!!!! (Prelude_RCR)
Hey, I was in the SAME situation. I blew up my H23, so I was looking for a H22a swap. I found an H22a4 for $1500, so I got that instead. It only had 15k miles on it! I would rather have a newer, low mileage motor than one from JDM land (it's a gamble with JDM motors, cuz you can find some seriously abused motors, or seriously babied motors), or an older USDM motor with 90k+ miles on it. I just re-used my H23a tranny (for future plans )
Anyways, there's a few things you need to change in the OBD-II H22a4 motor. The only thing OBD-II on the motor is the distributor and fuel injectors. Otherwise, everything else bolts up. I re-used my H23a distributor, which will allow me to adjust my timing. The H22a4 Dist doesn't.
Secondly, get some H22a1 fuel injectors. They are bigger, 310cc compared to 290cc from the H22a4. Also, more importantly, they are peak-and-hold injectors, while the H22a4 injectors are saturated. What this means is that if you're going to use the OBD-I P13 ECU, you need to run peak-and-hold injectors, or else you'll fry your ECU with the H22a4 injectors.
And depending on which year your car was assembled, it may already be wired with the VTEC wires. You'll need to doublecheck your wire harness by the ECU to verify if it is indeed already wired. I found out that my 95 Si already had them in when I ran the VTEC wires through the firewall, only to find out that there were already wires in the harness. I traced them to a connector in the engine bay, and wired it to there instead.
I used my H23a wire harness and connected everything to the H22a4. I only had one connector left over, right underneath the distributor. I left it off, since there was no check light. You'll also find that on the H22a4, there is a connector near the bottom of the timing belt cover. I left that off too, since I believe it had something to do with the H22a4's fixed timing. No check lights, so I'm not too worried about it.
Pretty easy swap, considering everything was in place already. OBD-I and OBD-II isn't all that different.
I just re-used my H23a tranny (for future plans )Anyways, there's a few things you need to change in the OBD-II H22a4 motor. The only thing OBD-II on the motor is the distributor and fuel injectors. Otherwise, everything else bolts up. I re-used my H23a distributor, which will allow me to adjust my timing. The H22a4 Dist doesn't.
Secondly, get some H22a1 fuel injectors. They are bigger, 310cc compared to 290cc from the H22a4. Also, more importantly, they are peak-and-hold injectors, while the H22a4 injectors are saturated. What this means is that if you're going to use the OBD-I P13 ECU, you need to run peak-and-hold injectors, or else you'll fry your ECU with the H22a4 injectors.
And depending on which year your car was assembled, it may already be wired with the VTEC wires. You'll need to doublecheck your wire harness by the ECU to verify if it is indeed already wired. I found out that my 95 Si already had them in when I ran the VTEC wires through the firewall, only to find out that there were already wires in the harness. I traced them to a connector in the engine bay, and wired it to there instead.
I used my H23a wire harness and connected everything to the H22a4. I only had one connector left over, right underneath the distributor. I left it off, since there was no check light. You'll also find that on the H22a4, there is a connector near the bottom of the timing belt cover. I left that off too, since I believe it had something to do with the H22a4's fixed timing. No check lights, so I'm not too worried about it.
Pretty easy swap, considering everything was in place already. OBD-I and OBD-II isn't all that different.
The plugs for certain things are different, the plug on the h23a harness for the alternator does not atach the the alternator on the h22a4. Do we have to cut and splice any wires?
Can we reuse the injectors from the H23a since we cannot use the injectors from the h22a4 with the OBD1-P13 ECU. Can we use a P72 ECU from a GSR?
We will reuse the distributor from the H23a. Are there any other gotchas that we need to know about
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From: Milwaukee, WI
Re: some H22 info PLZ!!!! (canuck-mx6)
The H22a4 is no different if it came from a manual or automatic. Which connectors do you still have left over? On the wire harness, or motor itself?
Secondly, you CAN use your H23a injectors, but remember that they are even smaller sized, somewhere around 230cc? I would recommend you use an OBD-I P13, as the P72 will run a little more lean...which combined with the smaller H23a injectors will run dangerously lean. I wouldn't chance it.
And for the ALT, I used my old H23a ALT and it works fine. You might have to do some splicing here. I'm thinking the connector is just different, but doublecheck your Helms for the exact wires to splice into.
Also, are you planning on using your PS? You will need to cut your H23a PS bracket a tad to make it fit. You can use your H23a A/C bracket as well to retain the A/C on the H22a4.
If you have any other questions, please feel free to ask. I'll try to recall any other "problems" that I encountered.
Secondly, you CAN use your H23a injectors, but remember that they are even smaller sized, somewhere around 230cc? I would recommend you use an OBD-I P13, as the P72 will run a little more lean...which combined with the smaller H23a injectors will run dangerously lean. I wouldn't chance it.
And for the ALT, I used my old H23a ALT and it works fine. You might have to do some splicing here. I'm thinking the connector is just different, but doublecheck your Helms for the exact wires to splice into.
Also, are you planning on using your PS? You will need to cut your H23a PS bracket a tad to make it fit. You can use your H23a A/C bracket as well to retain the A/C on the H22a4.
If you have any other questions, please feel free to ask. I'll try to recall any other "problems" that I encountered.
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From: Pegging the bling meter
Re: some H22 info PLZ!!!! (Prelude_RCR)
Is there any way to use the OBD2 injectors with the p13 OBD1 ECU? We can't find obd1 prelude injectors anywhere. Also, can't I just use a OBD1 P72 (GSR ECU) as it was designed to drive a saturated injector. This is what the 2001 H22a4 injector is, 290 CC saturated .
[Modified by canuck-mx6, 1:54 AM 8/24/2002]
[Modified by canuck-mx6, 1:54 AM 8/24/2002]
Joined: Jul 2002
Posts: 267
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From: VANCOUVER, BC, Canada
Re: some H22 info PLZ!!!! (Prelude_RCR)
Anyways, there's a few things you need to change in the OBD-II H22a4 motor. The only thing OBD-II on the motor is the distributor and fuel injectors. Otherwise, everything else bolts up. I re-used my H23a distributor, which will allow me to adjust my timing. The H22a4 Dist doesn't.
[Modified by Rybrid, 5:23 AM 8/26/2002]
Thread Starter
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Joined: Aug 2002
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From: Land Down, Under, Australia
Re: some H22 info PLZ!!!! (Prelude_RCR)
Prelude_RCR,
Thanks for your help!! It is greatly appreciated
At the moment I am trying to weigh up all my alternatives I am thinking either
Swap my H23 for a H22. Which is difficult cause i live in OZ and no one down here know **** all (excuse my language) about these engines!!!
Or
keep my H23 block and bolt on the head of a H22, that should give me a H23 VTEC right?
Either way, it was handy to know about the different injector sizing. If I decide to keep the H23, do you think it is worth my while upgrading the injectors to the H22 ones? And will ther even just bolt on?!
Thanks Everyone !
Thanks for your help!! It is greatly appreciated
At the moment I am trying to weigh up all my alternatives I am thinking either
Swap my H23 for a H22. Which is difficult cause i live in OZ and no one down here know **** all (excuse my language) about these engines!!!
Or
keep my H23 block and bolt on the head of a H22, that should give me a H23 VTEC right?
Either way, it was handy to know about the different injector sizing. If I decide to keep the H23, do you think it is worth my while upgrading the injectors to the H22 ones? And will ther even just bolt on?!
Thanks Everyone !
Joined: Aug 2002
Posts: 23
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From: Warm Springs, Oregon, USA
Re: some H22 info PLZ!!!! (Prelude_RCR)
hey Prelude RCR
I am having problems with my 2.3 vtec right now and i was wondering if you have a lot of experience with this motor. My motor is totally bogging on me right now and I cant figure out why. Before i blew the timing belt and bent some valves it never did this. The check engine light is on but it was on before the timing belt problem as well adn it was the same code 9 which is a sensor in hte distributor. I replaced the dist. but still have the litght. Any ideas? The block is from a 93 and the vtec head is from a 97. Everything is OBD I. It bogs after it warms up and then once I FINALLY get it up to VTEC it seems to be fine. This is driving me crazy.
I am goning to try to turn the cam gear settings back to 0 and see if this helps. My current mechanic thinks it me be my ECU (p13 OBD I, chipped) I don't think so because it is the same ecu I had before. Its like the ignition is being totally retarded and so no power!
If anyone else has any suggestion please let me know. I appreciate any help I can get.
I am having problems with my 2.3 vtec right now and i was wondering if you have a lot of experience with this motor. My motor is totally bogging on me right now and I cant figure out why. Before i blew the timing belt and bent some valves it never did this. The check engine light is on but it was on before the timing belt problem as well adn it was the same code 9 which is a sensor in hte distributor. I replaced the dist. but still have the litght. Any ideas? The block is from a 93 and the vtec head is from a 97. Everything is OBD I. It bogs after it warms up and then once I FINALLY get it up to VTEC it seems to be fine. This is driving me crazy.
I am goning to try to turn the cam gear settings back to 0 and see if this helps. My current mechanic thinks it me be my ECU (p13 OBD I, chipped) I don't think so because it is the same ecu I had before. Its like the ignition is being totally retarded and so no power!
If anyone else has any suggestion please let me know. I appreciate any help I can get.
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