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Discussion Starter #1
hey guys i really need your help, i want to put at d16y7 in my 1989 civic and was wondering if it'll fit because we tried it in my bros crx but it sat awkward. and it never ran well, i need to know what i will need to drop this in my ef. what axles do i need? what dizzy? what ecu? what everything :? .....thanks guys
 
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I will suggest getting everything from a Y7, axles, harness, ecu, etc. It should fit ok. You guys must've done something wrong in your bros car. 8)
 
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I will suggest getting everything from a Y7, axles, harness, ecu, etc. It should fit ok. You guys must've done something wrong in your bros car.
Although I concur you must have done something wrong...I don't see how y7 axles are going to help. I assume you're running the stock L3 tranny? Use whatever axles were meant for your car.

And you sure as hell don't want the obd-2 ecu

First off, what kind of 89 Civic...MPFI or DPFI? You're not giving us very much to go on.

For the 96-00 D-series motors into a 88-91 Civic, I understand you have to switch driver side motor mounts/bracket. Don't ask me which way...it's the y7 or the a6...one of them works

If you've got MPFI already, all those components(intake manifold, distributor etc bolt onto a y8...Maybe, likely, the y7 is the same.

Try looking at the y7 bare block/head as a self contained unit.
Now attach everything from your D16a6 MPFI to the y7 head/block. Take the A6 wiring harness, figure out what plug goes where. At least 90% of them will plug in because you're using as many A6 parts as possible. There may be a few plugs on the y7 block that require changing the A6 plugs to fit the y7 fittings(something about the coolant fan switch comes to mind).
IF you can get an a6 ecu wired to all it's necessary components, and those components are attached to y7 block/head, it should run just like a a6.
 
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ok i have a d15b2 in my car but i already did the mpfi swap with the intake manifold, yeha something about the fan comes to find, where would i be able to find out what the difference is between the y7 and the a6 harness??i am going to probably be using my d15b2 tranny for a while so do i just use my axles and flywheel and such??Thanks
 
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Yes, use the clutch, flywheel and axles that match the tranny

Take your MPFI harness, identify all the plugs(with tape labels if necessary). Plug in what you can, whatever is leftover that wasn't plug and play, read the label, identify where that same sensor is on the y7. Look at the sensor, figure out what kind of plug it takes and get on from a junkyard/someones leftover harness/order it new etc etc solder the y7 compatible plugs onto the MPFI harness.

And are you sure you did a good MPFI conversion...as in all your parts and your wiring?
 
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yes i did a good mpfi conversion because my d15b2 is running and running strong, its actually pretty peppy :D, yeah so what i'll do is find a 96-2000 civic with that engine and look at what i need to do and then work from there, i'll most likely be using my si intake manifold, and what do i do for the distributer??and the 88 si ecu will be fine right???
 
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Like I said, think of that y7 head/block as a self contained unit.
You're bolting everything from your MPFI onto it. Wiring harness, intake manifold, distributor, ECU...everything.

If something doesn't bolt or plug right in, you go to the y7 item and see if it's able to be retrofitted.

You do know that isn't going to give you any more power than the stock a6 right?
 
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ok thanks a lot man u helped a lot, i'll keep you posted, the reason y i am using this engine is because my d15b2 is almost fried with like 237,xxx km's and i just happen to have one of these in my garage
 
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Discussion Starter #10
does any one actually have a newer d series engine into a ef hatchback, i know there is a person with a red civic hatch with a d16y7 bottom and a y8 top but so far he hasnt responded, any one else out there?
 

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Hey whats up i got a y7 in my ef and i used all crx si parts on the y7 block the block is the only thing i used for the y7 i put a y8 head on but that dont matter

u have to get the d16a6 crx si stock motor parts
The dizzy, intake manifold, tranny, ecu pm6, axles
Oh and u have to swap the motor mount and the bracket that goes the the block on the driver side
Mine runs great and sits the way its suppose to. You dig lol
If you need anymore help let me know
 

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Hey whats up i got a y7 in my ef and i used all crx si parts on the y7 block the block is the only thing i used for the y7 i put a y8 head on but that dont matter

u have to get the d16a6 crx si stock motor parts
The dizzy, intake manifold, tranny, ecu pm6, axles
Oh and u have to swap the motor mount and the bracket that goes the the block on the driver side
Mine runs great and sits the way its suppose to. You dig lol
If you need anymore help let me know
OH MY GOODNESS BAN HIM NOW!!!!!!!!!!!

Who digs up a thread from 2003 to answer some simple question that can be found by doing a google search!!!

BANANATE HIM NOWWWWWWWWWW!
 

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OH MY GOODNESS BAN HIM NOW!!!!!!!!!!!

Who digs up a thread from 2003 to answer some simple question that can be found by doing a google search!!!

BANANATE HIM NOWWWWWWWWWW!
Your a ass. Come on man who is still a child on a thread?
On well




Btw i uses the stock wire harness that i did the mpfi converion swap myself the stock harness is better to use then the si harness.
 

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i did all the work myself. How does saying you dig make me sound like i dont know what im doin? U make no sence did you even start this shit im here to help you here to be a mr know it all im better then everybody type of guy its ok tho
 

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Your a ass. Come on man who is still a child on a thread?
That I may be. But you do realize you dug up a thread from 7 years ago in order to update members who no longer post here on how you went about solving a problem that's been solved so many times there are now step-by-step instructions posted on the internet...

If you wanna start a how-to thread with pics and all kinds of fanciness, be my guest but why bump something so old?

As far as me being a child I'll leave you with this, it's "You're" not "Your" :p
 

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Well jus to let you know i didnt know it was from 03 but still no one ever answered what was being asked. There is other people that could use this stuff thats all
 

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im about to do this in another month or so, my moms '91 is burning hella oil and needs some TLC, gettin a Y7 next week to prep and drop in. everything bolts up and works, ecu and all, i think the only mod needed would be to extend the coolant temp sensor from the backside of the block to the tstat housing if im correct.
 
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