OBD0 DPFI --> OBD1 Distributor Wiring? - Honda-Tech - Honda Forum Discussion

OBD0 DPFI --> OBD1 Distributor Wiring?

Old 05-20-2007, 09:44 PM
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Default OBD0 DPFI --> OBD1 Distributor Wiring?

I made this little diagram, so hopefully someone can make sense of it and fill in the blanks. That way I can get this dizzy wired up and future swappers can learn from it also.

OK, so I am putting an OBD1, TD-41 distributor on my A6. I took the male side of a dizzy plug from the junkyard and left the wires on it so that I can wire my harness to them and pretend that it never had a DPFI, OBD0 plug on it.

My engine harness is DPFI, so I added the two wires into the harness already when I swapped the A6 in. (C21 and C29) Basically, I just need to know which wire to solder to which so that instead of having an OBD0 male plug on it, I will have an OBD1 male plug on it.

The top plug is already done, that's only a 2-wire.



If someone can button it up like this:

8->6
9->1
12->3, etc.

That would be SO appreciated. I just couldn't find a diagram pertaining to my situation.
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Old 05-21-2007, 09:09 AM
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Default

BUMP
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Old 05-21-2007, 09:31 AM
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Default

Just grab a voltmeter and trace the wires from the ECU.
The I made the obd1 diagram below a while ago, and its 100% accurate.
The obd0 diagram should be accurate also, but i just made it.
Using the below info and voltmeter, it should be very easy to get your wiring sorted out.
Let me know if you have any other questions.


OBD0......OBD1
------------------
[b10].......[b11] --> cyp P aka cylinder position
[b12].......[b12] --> cyp M aka cylinder position
[c3].........[b13] --> tdc P aka top dead center
[c4].........[b14] --> tdc M aka top dead center
[c1].........[b15] --> ckp P aka crank position
[c2].........[b16] --> ckp M aka crank position
[b15].......[a21] --> Ignitor signal




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Old 05-21-2007, 09:32 AM
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Default Re: (l1bid0)

I took that out of https://honda-tech.com/zerothread?id=1349052 thread. That's what i used.
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Old 05-21-2007, 10:18 AM
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Default Re: (l1bid0)

Hmmm...

Anyone else? I'd like to just match up the wires and solder them together.
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Old 05-22-2007, 04:34 PM
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Anyone done it this way before, and can confirm the wire colors to match up?
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Old 05-23-2007, 12:56 PM
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Default Re: (Tippyman)

Thanks to this diagram, I have figured most of it out (I think.)



However, the C1 and C2 (C21, C29) wires are still undecided.

The CKPG goes to blue/yellow,
the CKPP goes to blue/green.

Which wire is the CKPG and which is the CKPP?
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Old 05-23-2007, 12:57 PM
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Ok, I think C1 goes to blue green, cause that is the CKPP.
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Old 05-23-2007, 01:06 PM
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Sooo... via process of elimination, I decided that:

10 ----> 4
11 ----> 6
12 ----> 3
13 ----> 5
(Large) 14 ----> 1
(C1) 8 ----> 2
(C2) 9 ----> 7

Orange - Peach
White/Blue - White/Blue
Orange/Stripe - Peach/Stripe
White - White
Large White - White/Green
CKPG (C2) - Blue/Yellow
CKPP (C1) - Blue/Green

C1 C3 C5
C2 C4 C6, etc.

There. We'll see if it works.
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Old 09-22-2016, 08:52 PM
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Default Re: OBD0 DPFI --> OBD1 Distributor Wiring?

Ok so I'm at the same problem I'm using a dpfi engine harness and i already did the mpfi on the inside and then did a jumper harness to obd1 ecu and I also ran a obd1 injector harness straight to my ecu... So know I just need to know has to convert my dpfi harness to my obd1 dizzy I already ran the 2 wires out the fire wall Any help on this
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Old 09-24-2016, 10:10 AM
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