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Old 12-18-2006, 06:37 PM   #1
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Frank's mpfi/obd1 swap list

I would like to compile a list of things I will need to do this, if I do this.

I have a stock 91 civic std (d15b1/dpfi/obd0)

I don't know which im/tb/dizzy/ecu etc i need, so if anyone knows I can start looking.

missing anything here?

b7 im
b7 intake arm
b7 tb
dx dizzy
p06 ecu
ecu plugs


thanks guys.
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Old 12-18-2006, 06:41 PM   #2
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You look good, there might be something I'm forgetting, but nothing too serious, I ought to write it up one of these days. Wish I had my camera with me, boo my foolishness.

You can use any old IM/TB, but to match the ehad best I would use DX stuff. I happen to have an obd1 dx IM laying around,
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Old 12-18-2006, 06:52 PM   #3
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Ben, do i need a chipped ecu or a dx ecu (p??)?

I'd be interested in buying your im if i cant find an integrated im/tb.
is the wiring a pain? what is the easiest way? buying a new harness? If I want to modify my current wiring would that be hard or much more time consuming? Thanks!
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Old 12-18-2006, 06:56 PM   #4
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p06, wiring is easy, use the old hardness, you need to and it's easy.
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Old 12-18-2006, 07:00 PM   #5
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Cool. Is it neccesary to go obd0>obd1 in order to do an mpfi swap?
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Old 12-18-2006, 07:05 PM   #6
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What is "ehad" and is there any benefit of using the dx im as opposed to a cx im? Anything wrong with using the 88-91 b8 im or the 92-95 b7 im?
maybe mpg diff's b/w the dx and cx? would i then have to use a diff ecu?
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Old 12-18-2006, 07:12 PM   #7
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You don't need to go obd1.

The DX IMs will match your intake ports better, and the b7 IM is prettier than the crx/civic si one.
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Old 12-18-2006, 07:26 PM   #8
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if the b7 (same as b8?)im lines up, fuel efficiency wise which im should i go with? do you know if i would run into probs with the b7 im not lining up well enough?
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Old 12-18-2006, 07:30 PM   #9
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b7 is DX, b8 CX. I'd use the b7, because the b8 will have ugly air flow. *shrug*
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Old 12-18-2006, 07:39 PM   #10
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cool, I am now starting to read on h-t about mpfi swapping!
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