OBD0-OBD1Well I spun a rod bearing in my 91 Si and I was thinking of swapping a B18C5 into it. I want to see some pics of this swap if anyone has some. Would a conversion of OBD be a must for this swap? Could I stay OBD0? Would the Zdyne ONE WIRE ECU be a good alternative for the swap instead of swapping to OBD1/OBD2. Another alternative would be to run the PW0 ECU with the wires for vtec to the ECU, ey?


Modified by JSPECHB at 2:33 AM 2/28/2004

 

Don't go OBD-II, don't stay OBD-O.

Use all the stock ITR injectors, distributor, etc and convert to OBD-I (they're compatible). Run a chipped P28

 

How hard would it be to convert to OBD1? What do I need? Wont I have to do all the wiring behind the dashboard and **** also? If I get the ITR swap I'm going to have the complete engine harness with it. Will that plug into my cars harness at the shock towers and then will I just be able to get a OBD0-OBD1 ecu conversion harness?

 

I'm afraid the C5 harness will NOT plug into your ED chassis. Not a chance. As for converting to OBD-I, do a search on here and you will find TONS of info! I can tell you that the stuff under the dash will not require modification.

 

Oh hell, I'll be nice. Here are the OBD-I pinouts and instructions:

http://www.geocities.com/kurtsi_on/page9.html

 

So basically if I buy the OBD0-OBD1 conversion harness from Boomslang I'm set? Would I also have to use the engine harness from a 92-95 Si engine (D16Z6) or could I use the exisiting ITR engine harness? You said the ITR engine harness WONT plug into the EF harness where they meet at the strut tower though. What the hell do I do about that? Thanks for the help BTW.

 

I am running a stock ecu OBD2 in my EF and it runs much stronger then then my P30 In my CTR

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JSPECHB &raquo;</TD></TR><TR><TD CLASS="quote">So basically if I buy the OBD0-OBD1 conversion harness from Boomslang I'm set? Would I also have to use the engine harness from a 92-95 Si engine (D16Z6) or could I use the exisiting ITR engine harness? You said the ITR engine harness WONT plug into the EF harness where they meet at the strut tower though. What the hell do I do about that? Thanks for the help BTW. </TD></TR></TABLE>

Yeah you should be set with a conversion harness. May I reccomend http://www.vtecfrog.com - these guys have the nicest harnesses I have ever seen. As for the OBD-II harness, you just take bits and pieces off of it and splice it into your existing 88-91 harness (distributor plug, injector plugs, etc).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bossman032 &raquo;</TD></TR><TR><TD CLASS="quote">I am running a stock ecu OBD2 in my EF and it runs much stronger then then my P30 In my CTR </TD></TR></TABLE>

Really? You converted to OBD-II??? Would you mind posting the steps you took to do this, just so we have a reference for it in the future? I know it's been done before, but it involves a lot of work and swapping.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bossman032 &raquo;</TD></TR><TR><TD CLASS="quote">I am running a stock ecu OBD2 in my EF and it runs much stronger then then my P30 In my CTR </TD></TR></TABLE>

Really? How much wiring was needed to convert from OBD0-OBD2? Did the OBD2 engine harness plugs plug into the EF car harness where they meet at the shock towers? Some help would be nice.

Mr. S - vtecfrog.com


Modified by JSPECHB at 3:13 AM 2/28/2004

 

its pretty simple. if you use a obd jumper u have to use your existing EF engine harness.

 

I'm just going to get the engine and buy a OBD0-OBD1 conversion from the guys over at vtecfrog.com. I just swapped in a D16Y8 in my friends EG VX hatch last nite and that consist of going from OBD2-OBD1. That was really simple. I used his existing OBD1 O2 sensor, OBD1 distributor, and a P28 ECU. I think this is going to be a little more complicating though. I'm still open for info though, so keep it coming!

 

It really won't be that bad. I swapped an OBD-II D16Y8 into my old CRX and it was the same as converting to OBD-I because the injectors and distributor worked with the OBD-I ecu.

Good choice with the vtec frog harness, it will really simplify things... I made my own convertor harness and it was NOT worth it! You won't be disappointed with that harness!

 

running OBD1

 

the conversion harness - where does it go? does it let you use whichever ECU you are trying to convert to? like if you had a OBD0-OBD1 harness, does that have the OBD1 connectors at the ECU (so you can run a P28) and then the OBD0 connectors at the engine bay (so you can just modify the engine harness)?

kinda confused..

 

Now that is a nice sleeper.

 

http://www.vtecfrog.com They make a conversion harness to go from OBD0 --&gt; OBD2a or b... Thats what i will be doing when I get the harness, so I can run my obd2a P73 JDM ITR ecu with my swap and run the computer that was meant to go with my JDM B18C-R motor...

Its alot easy to use the JDM ecu rather than a USDM ecu because the USDM ecu uses a few more sensors that have to be added to the EF. http://www.vtecfrog.com has all the info on there website pertaining to this conversion...

 

Damn dude. Thats a nice *** car.

 

 

on my previous b18c, i didnt have the time to make my OBD2 harness (i was gonna run the jdm itr ecu) so i just kept it all non-OBD for awhile. i just ran a chipped PR3. actually most of the time i ran it with a stock chip. the PR3 or PWO ECU and a non-OBD distributor is all you need. just wire it up like a non-OBD b16a. OBD is better then non-OBD, of course, but if you ain't got the $$$, just go non-OBD. my ran just fine. baselined over 200whp on the non-OBD stuff too.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eggman &raquo;</TD></TR><TR><TD CLASS="quote"> baselined over 200whp on the non-OBD stuff too.</TD></TR></TABLE>
Eggman what was your setup? I want 200 NA whp...