street808legal

Sup peeps I'm new to this forum but just wondering if some one can help me out! But anyway i got a JDM ITR motor and i'm going to put it in my EG6 but i don't know what i'm going to do about the ECU part of it. Someone suggested that i redo my wire harness so that the ITR ECU will plug in but i don't want to do that, cause I want to keep it OBD1. IS THERE ANYBODY WHO HAS THIS SETUP?

HELP
THANKS

ki3t

ask b18c5-eh. And try searching.

ill phil

Just get a re-chipped P28 ECU to the specs you are looking for.

B18C5-EH2

Keep your USDM Civic harness.

You will need to keep the civic's injectors since the plugs on the ITR injectors won''t plug up, but they are supposed to have the same flow rates.

For an ECU buy a 1992-1995 P28 SOHC VTEC ECU and have Kenji in FLA rechip it. His e-mail addy is kenji211@tampabay.rr.com.

Once you run the P28 ECU you will also need to add a VTEC oil pressure switch to the JDM ITR motor because it does not have one and the P28 looks for one.

Any 1992-up VTEC oil pressure switch form any VTEc motor, SOHC or DOHC, will work.

As for the distributor my mind draws a blank right now.

I'm pretty sure the ITR will have a "one plug" type distributor while the USDM OBD1 Civic engine harness will have two plugs for the distributor.

If this is the case then I have a very simple solution.

Let's refer to the pics, shall we?

Here's what the OBD2 dizzy plug looks like:



The two wires that I have pointed to simply only need to be unpinned from the single plug there. then you simply repin them into the "extra" plug that your Civic engine harness will have - they are even the same color:



I have a few more pics showing better angles so you'll understand it better.

This method allows you to use the newer OBD2 distributor without having to buy an OBD1 distributor.

This is the method I used to keep the newer B16A2 dizzy in my 1992 si hatchback with the 1992 engine harness.

If I've missed something then my bad, but i'm pretty sure that I touched on the key points for wiring up a JDM motor and keeping it OBD1 by using a re-chipped P28 ECU.

BTW:

the P28 comes from any 1992-1995 Si hatch, 1992-1995 Ex 4-door, 1993-1995 Del Sol Si and Civic EX coupe.

Make sure you get a manual version!

street808legal

Won't i get a check light cause of the knock senser? If i'm not mistaken P28 don't have knock sensors rite!

junglerunna

Thats some real badass info.

Stryker908

You can get them reprogramed to not look for a knock sensor ...

street808legal

Thanks for all your guyz help!

B18C5-EH2

No.

The P28 has never nor will ever look for a knock sensor.

B18C5-EH2

I edited the title to get more appropriate attention from those who can add info, and for those who are looking for this info.

This'll also pop up on the search function too.

Apex i ITR

You can use the ITR wire harness for the engine for the JDM ITR motor so you don't have to go thr uall the trouble of swapping distributors and injectors.

It will reach the chassis harness from the civic.

I have this done and it works fine.

B18C5-EH2

I remembered that too, but it will not fit as good as the Civic engine harness. Remember, my post above allows you to keep the ITR dizzy.

You can't put the brackets that mount the plugs near the strut towers with the JDM harness, can you?

Anyways yes either method will work, but you'll still need to add a VTEC oil pressure switch to the JDM motor if you use the P28 ECU.

Also one last thing:

A lot of JDM motors come with cut harnesses too.

B18C5-EH2

Let me also add that it's a good idea to upgrade to a GS-R/Type R fuel pump too. they are the samne part number, and they are pretty abundant at salvage yards.

The CX/VX/DX and even Si pumps are not up to the task of fueling up the ITR motor.

I would not chance it.

Apex i ITR

No you can't mount the brackets but I know for me a harness @ the time and injectors and distributor was kinbda pushing me to the limit. I may try to get a USDM harness.

And yeah either way you slice it a USDM vtec solenoid is a must.

Get a motor from a reputable engine seller and the harness shouldn't be cut.

Good luck.

VX

what if you live in Cal. and you want to do a B18C5 swap and also want it to legally pass Smog.
I believe you have to use the ECU that is meant for that specific engine, correct me if i'm wrong. How would I wire up a B18C5 with the ECU the swap came into an EH2?
And not have it re-chipped, because i think messing with the ECU is illegal in Cali, i might be wrong though... that's why i'm asking to clarify this wiring task. any help is greatly appreciated.

street808legal

I live in the 808 state so emissions and all that rechipping stuff is the least of my worries i just have to find what kind of brain to use.

What happens if i use a 94-95 P72 ecu? And if i did what kind of program should i use?


[Modified by street808legal, 11:30 PM 4/3/2003]

B18C5-EH2

The P72 ECU sucks ***** for the B18C5. Please just use the P28 and save yourself any troubles.

street808legal

What program chip should i use for the P28? Cause i live on this rock in the middle of the ocean and our resources are limited!

JDMCivicEF9

I got a USDM B18C5 motor. Should I do the same wiring on my distributor for my USDM B18C5 swap also? They other thing is do I need to wire the VTEC oil pressure switch also? I just wanna make sure about this.

B18C5-EH2

No.

The USDM engines allow you to use their engine harness, which is 100% plug and play as I mentioned to you on Civic Hatchback.com's site.

In my 1992 CX it was 100% plug and play with the USDM B18C5 with it's engine harness and P28 re-chipped ECU.

0gsR

VX,

email kenji, he can make you an OBD1 to OBD2 wire harness converter so you can use your OBD2 ECU. he made me one, no cel !!!! a must if you're in cali, unless you got a smog hook up!

kenji211@tampabayrr.com

hybrider

nice work ppl

jonnybravo

You can use the ITR ECU if you wasn using a custom made OBD1 to OBD2 harness adapter. I just so happen to have on I'm selling for $40.

B18C5-EH2

Okay so in California let's say you have a 1992 Civic.

You buy a 2000 Integra Type R swap.

Are you telling me that even though the standard emissions for the car should be 1992, Cali requires you to run the OBD2 ECU and electronics?

Okay let's suppose that this is the case.

In order to do that you'll need that jumper harness from the likes of Kenji in FLA, but remember this:

You will have to wire up the extra 02 sensor, crank fluctuation sensor, and the other extra sensors/electronics for the OBD2 ECU not to throw any CEL codes.

For the other 49 states forget about the OBD2 ECU. It is more trouble, makes less power, and in the end costs more than a re-chipped P28 ECU.

I guess Cali and JDM motors don't get along too well?

Apex i ITR

Also would need to wire up knock.