You probably can but you'll have a CEL, if you have to pass inspection I don't think that will fly.

 

Quick question! I love the right up. I have a 2000 Civic LX - D16Y7 non-VTEC Auto. I went to the junk yard today pulled a D-series manual trans. If I got a ECU from a 96-00 Civic D16Y7 MANUAL. Would I have to do all the re-wiring of IACV and such, or just swap ECU, trans, add pedal, clutch lines, slave, master, etc?

 

It’s been along time since I’ve seen this write up lol. If I’m not mistaken the Y7 and the Y8 use a different IACV plug. For some reason I want to see the Y8 uses a three plug which you will need to take care of to keep from throwing codes. As far as all the other parts for the most part, you nailed it. I did the swap years back and honestly when you get done you will stop and say wow it was that easy because it really is. It’s not like messing with the TRANS AM or something like that, you’ve got a ton of room in there to work and everything is pretty much already ready to go for you.
just make sure any wiring that you mess with that you get good solid connections and if you’ve got to join any wires I would highly advise going through and making sure that you Sauter and he drink them just because chasing wires after something like this is not what you want to do. It’s a nice swap for sure though and you’ll actually see better gas mileage on it, and it’s fun drive! Good luck and if you have any questions I’m sure somebody on here can get you hooked up. While you’re at it, you can swap out your entire rear brake system for disc brakes off of an Integra or a civic SI and it literally all just bolts in place! Food for thought lol

 

Yeah it sure has been a long time since this post has been brought up. I am just trying to understand all the parts needed to do the swap. This write up is VERY Good, but it is also for a y8. I am keeping my D16Y7.

Here is what I currently have..

-D-series transmission
-Flywheel, clutch disc, pressure plate, all hardware
-Shift Linkage
-Manual ECU out of a EK with a D16Y7

 

- Do you have the clutch master cylinder along with the lines needed for it?
- Make sure you e got all the hardware that goes to each piece you’re adding. There are some great sites that sell OEM parts cheap and great prices. I can look and see if I can find the company I used if you’d like?
- Have you thought about going with the Y8 head while you’re doing all of this? That’s around a 20hp gain, and adding the manual transmission will make it an even funner little car. I believe the Y7 makes 106hp and the Y8 was around 128hp if I remember correctly.

The D series transmission is good and I always liked the gear ratios. If you can get your hands on a EX transmission, I would do that as well. That’s the fun and great thing about these cars is that they just swap right out! I can’t remember off the top of my head but if I’m not mistaken the gear ratios were a little bit different. I had gone through and had boosted mine and the transmission had such wide gear ratio that I was right around 300 hp so I could have had a little bit more, but honestly even with that transmission, you could drop it in third and blow the tires cars off going down the interstate lol
Im also very big on everything looking factory and not all ghettoed out.

 

Remember that the 96–98 ran a OBD2aB ecu, and the 99–2000 ran OBD2b. Your plugs won’t plug in if you don’t have the matching harness, so make sure you plan that when doing the swap. Honestly if you can find a car that has the entire harness, you can unplug everything in the engine bay and pull the entire harness out and it will go straight into your car like a glove. This takes away all the issues of having to try to re-pin something, or change this wire and solider etc. that’s if you can find the harness of course. I like clean so that was the path I went but it can be done without it for sure.

 

Good news! The ECU I got from the junk yard was out of a 99-00 I ran the numbers and it shows it fits 99-00.. and it came out of a manual. This being said I believe that I can just swap the manual transmission into the car. I will have to wire the neutral safety switch in to the clutch pedal..

Overall I think this should go well. I also believe that my axles will work on the car as well!

 

That’s really good news. I can’t remember off the top of my head but what year did you say your car was again? Like I said in that last post, the plugs are different between those year models, 96-98 (OBD2a) and 99-2000 (OBD2b). For the fact that it came out of a manual, that’s perfect and especially if it came out of an EX that would be even better because now you can literally put the Y8 head on the car and either swap the engine harness or modify the necessary wires to allow you to have VTEC! It adds nice little pep to the car, especially being a manual!

99’ LS1, CNC’d port and polished 243 heads, BTR hardened push rods, BTR titanium valves spring retainers and clips, BTR dual spring (valve springs), BTR Stage 2 trunnion kit, Chevy coolant/freeze plugs, Chevy oil barbell, new LS1 BTR head gaskets, Chevy performance oil pan gasket, Chevy performance front & rear timing cover gasket’s, Chevy rear main seal, Chevy crank pulley seal, Chevy oil level sensor, Chevy cam sensor, Chevy knock sensors, FAST 92mm intake, WARR 92mm TB, still need injectors.
Post some pictures up on here when you start or if you already have, I would like to see progress. I’m currently working on some thing with a few more cylinders

 

My car is a '00 so the ECU fits like you stated 99-00! All I need is a clutch pedal. since this is a daily the Y8 VTEC stuff is not really needed.. I paid 800.00 for the car and it has 97K miles. :D

 

Just tried doing this conversion but when i went to start it, it was clacking like if its the flywheel. I need some help

 

Hey !

I'm sorry but it is a manual swap from an Ej, right?
Is available the swap for an Eg ?

 

Try searching Google next time first before you post a vague question and bumping a thread with it.

[FAQ] Official Parts List for an Auto to Manual Swap on an EG - Honda-Tech - Honda Forum Discussion

 

Hey! Yeah, sorry for my ignorance.
Wanted to specify If its the same or almost the swap from that Civic and and eg6 ( 1.6 160cv ) 1992 .

Sorry for not being that good on names, I’m not that deep into the Hondas yet.

Thanks

 

No worries my man!

I honestly think it's the same but i never did this swap so i couldn't tell you 100%.

 

Hey, have some specific questions. I did the swap, have is a 1996 Civic EX (D16Y8) which is already running and driving.
Was able to procure the manual ECU, its P2P-335.
I was unable to get the manual intake manifold/IACV/throttle, so I still have the auto manifold with the auto IACV and Throttle body.
My questions are as follows:
1.- If I plug in the manual ECU, first of all will it work with the auto intake/IACV/throttle combo?
2.- Do I have to change out the wiring on the ECU pins for thr IACV (If I understand correctly, that this is when switching over to a 2 wire from a 3 wire IACV), but can I use the manual ECU with the stock auto 3 wire IACV or do I have to swtill mess with the pinout?
In case I am missing something please let me know

 

Answers in bold above.

 

I just want to know if i could possibly avoiding messing with wiring if I get the manual harnesses (ignition, ecu, etc.)

 

Honestly, the wiring isn't that hard to do. You can buy a subharness kit in the classifieds from c2spec motoring so you have reverse lights, clutch lock and cruise control. And the three to two wire iacv conversion isn't bad to do outside of de-pinning from the ECU.

 

Awesome Write up. Planning to do a swap on a 98 civic dx hatch I just picked up. Been reading several diy’s and watching videos.quick question.

1. I have D16y7, can I do the swap with my original Intake manifold? Reading a lot about the Y8 and the iacv and throttle body etc etc. although I do plan to possibly swap to a Y8 IM, am I good to go as far as what I have now (Y7 IM).

recently picked up from a 2000 civic literally a week after getting the hatch:

manual trans
shift linkage
pedal assy (all 3)
clutch master cyl
slave cyl
lines
Manual Y7 IM w/ TB (not sure if it’s the same as I have, but the guy was parting out everything)
fly wheel
3 trans mounts/brackets
Manual Starter

still missing some things, clutch, hardware, ecu. Excited to get on this project. TIA

 

Hi, I know this is an old thread.
but Im having surging idle after auto-manual swapping my 97 Del Sol Si, D16Y8. bought a manual IM & TB, & wired on my new 2 wire plug, & did the repin at the ECU connector. Auto ECU was P28-A54, the ECU I bought was P28-A04, i’ve got all my lines, new 2 wire IACV all connected im PRETTY SURE, in the correct way, but still goes up to about 2500 & back down to 1k. No CEL’s.
what am I missing here? I’ve yet to refill my coolant, thats the only thing I can think.

 

Incorrect coolant fill can cause a "hunting idle"... but it wouldn't be consistent... it would come and go. I am concerned about the manual I/M that you have purchased... what are the chances that you have a '99-00 I/M instead of one for a '96-98 D16Y8. The former has a flat edge across the top with a vacuum port pointing straight up out of the middle of the flange... the latter will match the gasket that came off the cylinder head of your '97 Del Sol Si engine.

 

Coolant level seems fine. Sat with it running to let it burp as much as it possibly could for about 20 minutes. Idle is very rhythmic, goes from about 1500 to 2300 rpm.

Intake mani doesnt have the tiny holes above the intake ports, if thats what you’re wondering.

 

Just curious about certain aspects. I am using a 99 EX coupe as the donor for a 00 EX 4dr manual swap. Pedals, master cylinder, clutch lines, and shift linkage all done and understandable. Questions regarding the ECU and wiring.
1) Donor car does not have ABS but the install car does. When changing out the ECU should I plan to swap the engine harness as well, should I expect issues? or will the the ABS just plug and work?
2) I have the complete wire harness and intake manifold from the donor, this avoids the altering of the engine harness. Should I expect issues in other places?

 

1) ABS should run independently of the ECU and runs a separate ECU, I am not sure where the ABS ECU is on the Civic, but on my Integra, the ABS ECU is located on the passenger side behind the plastic trim. I am not sure how the ABS is loomed in though.
2) I believe so, but not sure, hopefully someone else can answer that better than me.