Making an OBD0 to OBD1 harness....

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Old Apr 15, 2005 | 09:03 PM
  #1  
Jester88Si's Avatar
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From: Dallas, Texas, Usa
Default Making an OBD0 to OBD1 harness....

Now before people tell me to just buy one I want to make it clear that I want to attempt to make one myself after all messing with wires is part of my job if I cant do it blah...
I need clear OBD0 and OBD1 diagrams numbered with honda's original cross numbering pattern. I already have an obd0 diagram from the workshop manual but its pretty damn blurry so I need the obd1 diagram the most. thanks
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Old Apr 15, 2005 | 09:17 PM
  #2  
SloA$$ DA's Avatar
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Default

TTT

im am also wondering.
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Old Apr 15, 2005 | 09:23 PM
  #3  
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Default Re: (SloA$$ DA)

http://www.angelfire.com/sd/ma...1.txt

Try that
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Old Apr 15, 2005 | 09:24 PM
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Default Re: Making an OBD0 to OBD1 harness.... (Jester88Si)

http://www.boosted.org/ecu/COMPLETE.txt

Seriously, good luck it is a bitch.

I made one once. Took me about 3hrs. I ended up paying less than $100 shipped.

There are some one Ebay for $50 every now and then.
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Old Apr 15, 2005 | 09:39 PM
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NikoZai's Avatar
 
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Default Re: Making an OBD0 to OBD1 harness.... (JohnnieChimpo)

fun project. Doesn't FF-Squad have a pinout guide?
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Old Apr 15, 2005 | 09:42 PM
  #6  
HandCommand's Avatar
 
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Default Re: Making an OBD0 to OBD1 harness.... (JohnnieChimpo)

I would say it would be worth it years ago when I converted my CRX to OBD1, but now with the price of the harnesses dropping down from what it was many years ago, Id say just buy one.

I cut off 60+ wires at the ECU in my CRX and repinned and soldered them to an OBD1 harness. It was not fun! And Im a mobile electronics installer that deals with wiring everyday.

To me, it was worth it at that time because those harnesses were about $200-300 dollars back then.

Till this day, no issues with my OBD1 CRX. It was a challenge and at least I could say Ive done it, but for my customers cars, I just order the harness and be done with it.

Keep in mind, you will also have to rewire your distributor and oxygen sensor wiring.

If you plan to run saturated injectors, you will also need to eliminate the injector resistor box and rewire the injector clips also.

Good luck!
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Old Apr 16, 2005 | 06:41 AM
  #7  
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I need the OBD0 and OBD1 Pinouts right now I already have the directions on where to pin the new wires just no map or either....lol
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Old May 18, 2005 | 03:42 PM
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rev limiter's Avatar
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Default Re: (Jester88Si)

Can some supply me with a picture of the pinouts so i know which pin is A1 and which pin is A2 etc. I can figure it out for the A numbers but which pin is d1 and d2 etc.

and also i am confused with the diagrams !!

http://www.boosted.org/ecu/COMPLETE.txt says :

| A1 | BRN | INJ1 | INJ1 | -> A1
| A2 | YEL | INJ4 | INJ4 | -> A7

and http://www.angelfire.com/sd/ma...1.txt says

a1 to a1
a2 to a23

WHICH IS OBD0 AND WHICH IS OBD1 ????????? HELP !!!!
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Old May 19, 2005 | 02:58 AM
  #9  
rev limiter's Avatar
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Default Re: (rev limiter)

Oeps nevermind i figured it out !!!
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