i know this topic has been covered about 100 times. I did a search and tried my best to come up with some good answers to my questions.
my question is I have a 93 civic hb CX and i also have a 98 JDM itr motor, i know using a p28 ECU would work.
Is the P28 ecu all plug and play?
also the ecu im getting with the 98 JDM itr motor would be obd2, so if i receievd an obd1 ecu from an earlier type r say 96 spec, would that ECU work? or would i HAVE TO get the P28 ecu?
im not trying to user a jumper at all, but trying to find to a compatable ECU.
im not looking to spend any more $$ on a chipped ECU right now because of some $$ issues , but trying to get my motor running properly.
ANY POSITIVE feedbacks would be appreciated. thanks

 

damn johnny, when did you get the loot for that? did you finally sell the lude?

anyways, i would just stick with the ecu that comes w/ the motor until you upgrade. i'm sure jon will help you out.

 

ya i still got the lude, trying to sell it right now. going to bust my butt all summer to pay off alot of debt, but its going to be worth it. once i sell the lude and have no car payment and insurance goes down, im going to be loving it

 

sounds like you and joey need to run each other.

 

COPYRIGHT TOM HORNSBY aka B18C5-EH2 :
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 &raquo;</TD></TR><TR><TD CLASS="quote">B18C5 engine wiring into a 1992-1995 Civic:
IMO the USDM ITR swap is easier to swap in. I've done this swap 3 times already and it is 100% easy especially if you run a re-chipped P28 and even more so if you have a 1992 Civic or any 1992-1995 Si, VX, or EX with VTEC wires.
Here's what you'd need too do if you have a USDM ITR swap:
KEEP the ITR engine harness. Regardless of what others say the plugs all plug right in. This way you get to keep the newer ITR distributor and injectors, and there is no need to rewire anything. Again this is from experience, not hearsay.
You'll have a few extra plugs left over on the ITR harness because the ITR has a few extras that our Civics don't have, like ABS, etc. You vcan just hide the extra plugs.
Now there's a few different ways to get an ECU to work, and I'll list them from easiest to hardest:
1. Re-chipped P28. This will simply plug in. No need to wire up for a knock sensor because the P28 doesn't read for one. Better fuel, timing, VTEC x-over, and rev limiter = more power. OBD1 so no need at all to run any sort of extra sensors.
2. Kenji OBD2 jumper harness and JDM P73 ECU. I ran this on my motor for a while before the kenji ECU. You'll have to wire up a knock sensor wire and that's about it. Drawbacks are that this ECU has a 113-115 speed limiter and it doesn't make the power that the kenji-spec P28 does. ThisECU has OBD2 type plugs but IT RUNS AN OBD1 PROGRAM AND IT IS ONLY OBD2 IN PLUGS!!! I ran this ECU with no extra o2 sensor, no crank fluctuation bullshit, etc.
3. Jumper harness with USDM P73 ECU. Why? I wouldn't do this unless I was in Cali and it was necessary for smog bullshit. You'd have to wire up all the extra OBD2 bullshit and the ECU sucks compared to a re-chipped P28.

So that's for the USDM motors, but what about the JDM ITR swaps?
As Apexi-ITR has said the JDM harness can be used. It requires some stretching but it will work. If you must get the factory look then get any OBD2 type engine harness from any USDM B18C1 or B18C5 and then it will plug right in just like I said the USDM swap does.
As far as ECU stuff goes, really a P28 is the better choice again but you will need to add a VTEC oil pressure switch onto the JDM ITR motor because it doesn't have one and the P28 looks for one. Just pull an oil pressure switch from another VTEC motor - didn't you use a SOHC one Apexi-ITR?
Or you can run the jumper harness and O.E JDM P73 ECU. This will save you from having to add the oil pressure switch, but you'll have to add a knock sensor and this ECU still has the shitty speed limiter.
USDM ECU? But why?
That's about all I can think of right now. I run the kenji-spec P28 ECU in my 1992 CX hatchback and with this method and keeping the ITR engine harness I did not have to add one single wire at all! It was absolutely 100% plug and play!
</TD></TR></TABLE>

Hope that helps a little

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ELUD THS &raquo;</TD></TR><TR><TD CLASS="quote">i know this topic has been covered about 100 times. I did a search and tried my best to come up with some good answers to my questions.
my question is I have a 93 civic hb CX and i also have a 98 JDM itr motor, i know using a p28 ECU would work.
Is the P28 ecu all plug and play?
also the ecu im getting with the 98 JDM itr motor would be obd2, so if i receievd an obd1 ecu from an earlier type r say 96 spec, would that ECU work? or would i HAVE TO get the P28 ecu?
im not trying to user a jumper at all, but trying to find to a compatable ECU.
im not looking to spend any more $$ on a chipped ECU right now because of some $$ issues , but trying to get my motor running properly.
ANY POSITIVE feedbacks would be appreciated. thanks
</TD></TR></TABLE>

All year JDM ITR ECUs runs a OBD1 program with OBD2 version 1 style plugs. Therefore, you wouldn't need a chipped P28 and the ECU will still run your engine in your car without throwing a code. You will have to somehow, get a hold of a set of OBD2 version 1 plugs ECU plugs (96-98 civics, 96-98 tegs) and repin your current OBD1 ECU plugs. I did it to my 2000 civic (OBD2 version 2) in order to run a OBD1 GSR motor with a JDM ITR ECU. Good luck!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg-six &raquo;</TD></TR><TR><TD CLASS="quote">

All year JDM ITR ECUs runs a OBD1 program with OBD2 version 1 style plugs. Therefore, you wouldn't need a chipped P28 and the ECU will still run your engine in your car without throwing a code. You will have to somehow, get a hold of a set of OBD2 version 1 plugs ECU plugs (96-98 civics, 96-98 tegs) and repin your current OBD1 ECU plugs. I did it to my 2000 civic (OBD2 version 2) in order to run a OBD1 GSR motor with a JDM ITR ECU. Good luck!</TD></TR></TABLE>

Yea, you can run the JDM ecu with a OBD1 to OBD2 harness which I conveniently have for sale.

 

just get a chipped p28, keep everything obd1 and try to sell the itr ecu

 

thanks for all the quick replies i decided to go th a mugen chipped p28