civic coupe 96 swap into B18C5 ITR electrical matters !

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loverboy

Junior Member
Hello friends !
well im going to do an ITRengine swap into my ek coupe civic 96 (d16y8 engine).
I need your advice in what will be the best OBD situation to go with ?
A. I know I can stay OBDII and use the original P72 ECU of the b18C5 engine.
B. Im not shore but I think I can use an OBDI P30 ECU.
What will be the best way 2 go ? what modifications ill need to do in these 2 options ?
 
Well, it depends on what you plan on doing with the car, if you think you're gonna be happy with the power of the ITR, I'd say keep it OBD-II since it'll be a lot easier, pretty much drop in.

If you ever do any type of forced induction or just any kind of tuning, OBD-I is your best bet since it has much better tuning capabilities, many tuners are more familiar with OBD-I programs and you have more choices in tuning software.
 
What will be the wiring that ill have to do for going OBDI ?
Which ECU ? what about the engine harness ?
 
You won't need to make any extra modifications to the actual engine harness to convert to OBD1.

You'll need an OBD2>OBD1 conversion harness, and an OBD1 ECU to match the engine. The conversion harness plugs into the existing ECU harness, and has been repinned so that you can plug it into an OBD1 ECU with no wiring needed. Pretty nifty. RYWIRE.com sells them and you can also find them on eBay.
I would recommend going OBD1 either way, it makes it alot easier for tuning in the future. There is a wide array of free programs to tune with, N/A or FI. CROME seems to be the most popular lately.
 
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Thanks Matt !
But which ECU OBDI should i be using (if im going to swap an B18C5/B18C ITR engine) ??

These r my converssion harness options:
1.
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jdm-in-stock SKUNK2 HARNESS - 128$ (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&viewitem=&item=260248823490)

2.
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raceup harness - 100$ (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&viewitem=&item=220242709549)

3. Rywire harness - 95$ (http://rywire.com/store/obd2b-obd1-....html?osCsid=7b30a56fcee05b5dec6e410182f6c602)

4.
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xactdyno harness using custom mold that uses push-to-seat pins -$70(http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&viewitem=&item=330240859824)

5.
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streetimports harness using custom mold that uses push-to-seat pins - 50$ (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&viewitem=&item=310056751254)

What will u recommend ??
 
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