Hi everyone.

So I have a 1996 Civic Hatchback DX, blown engine, which will be swapped for a D15B OBD2 3-Stage VTEC, and I will have the P2J (OBD2) Automatic VTEC ECU, minus the harness.
-the transmission is automatic

From all the research I've done and with all I've come to so far, this seems to be the most feasible swap, except here is my dilemma...

**The ECU will look for the MULTIMATIC transmission the ECU and Engine came with... how big of a problem is this??
**The transmission is from a D16Y7 non-VTEC...but it will be used on a VTEC engine. What kind of problems can this cause?
**and are there any other problems anyone knows of that i will run into?


Any and every bit of help is much appreciated.

There's probably the chipped ECU route, but everyone who chips them does it for MANUAL cars only.

 

is the p2j you have from an automatic in japan, will not work with the USDM automatic.

The japanland automatics are CVTs, while ours or not.

I really wanted to do this swap, but then found out the ecu issues with the auto tranny.

( the swap is easy in a 5 spd , but in automatic you wont get the leanburn/auto ecu working)

If you do please post away.

thanks

 

Huge. It just wont work. The only time that swap should ever be attempted is on an HX with the CVT tranny. If the car needs to remain an automatic you could just grab an OBD2 non vtec ZC and the whole thing will be quite painless. If the car doesn't have to remain and automatic you could swap in the D15B vtec and a 5 speed transmission.

 

^^ the man who clarified it for me.

 

*its

thanks homies, your advice is much appreciated, there goes another shattered dream...

Unfortunately at the moment I do not have tools or a place to do the work myself, otherwise I would have attempted the auto-tranny swap. Very tight for $$ at the moment.

SO .... Is it possible at all to swap ANY OTHER ENGINE in this car? I can't seem to find the D16Y7 direct replacement with low KM anywhere... and from what I've read, OBD2 auto tranny wont work if converted to OBD1... so is there any other OBD2 swaps ?

 

Is the HX CVT the same as the 3-stage's CVT? Reason I ask is because I know the 3-stage CVT has 2 sport modes as seen in the auto cluster for the vi-rs

 

Easiest on $ would be another D-series....d16y8/d16y7/d15/etc

 

D16Y8 or the SOHC non-vtec OBD2 ZC i mentioned earlier (basically looks like a Y7 with Y8 intake and exhaust manifolds (you can swap the Y7s back on though)

That is correct.

 

where are you from ?

If canada, there are tons of jdm shops littered everywhere that have the sohc in stock for 300-500

 

thanks, i'll keep an eye out for that engine.

 

from toronto, ontario.

so its a d16ZC OBD2 NonVTEC?

is this what i would ask for when going to the different engine shops?

 

http://www.tigerjapanese.com/index.p...emart&Itemid=6

K so i found the motor. This swap should be happening very soon, since I can pick up the motor locally from this ' tiger japanese '.

Includes
Complete Motor
Complete Head and Block
Intake Manifold
Distributor
Injectors
Fuel Rail
Power Steering Pump
Throttle Body
Exhaust Manifold
Alternator


Is there anything missing in that list that I will need for the swap?

 

You will probably have to swap the CKF sensor and oil pump over to the ZC if it doesn't have it. Most JDM OBD2 engines if not all don't have this sensor.

 

Yeah it wont have a CKF sensor, if your engine died of a spun bearing or anything oil related don't swap the old pump, either buy a new one or just do the CKF trick like most guys.

CKF trick -> http://technet.ff-squad.com/ckftrick.htm

 

The guy, who I originally received the car from, did not change the oil for over 10 000KM. I don't know why. So maybe the pump was running dry, and that screwed it up. But the car won't even start anymore...
SO...
Are you saying that if the oil pump screwed up, I would only have to the CFK splicing trick and I'm done, without having to replace the faulty oil pump? (let's say it's faulty for now.)

and Thank you for the CFK Trick link... much appreciated.

 

I helped a good friend of mine put a 3 stage d15b in a 97 civic lx 3 yrs ago. We used an Apex'i VAFC and a d16y8 ecu, the 16v solenoid was hooked up to the VAFC, the third lobe solenoid was wired to the ecu, ran like a champ and got 35+mpg all day.

That will work for your automatic situation.

 

i would love to buy the apex'i vafc but i dont know how to use it , nor do i have the money at the moment.

so i opted out for the JDM ZC obd2 nonvtec instead. i'm trying to make this swap "painless".

btw, I want to change the timing belt and water pump for Jdm 96-98 ZC , and the timing belt... what other belt and pump can i use for this engine?
i cant seem to find anything specific for this engine.
** I hope parts for hte D16y7 and the JDM ZC 96+ nonvtec are interchangeable..

 

Y7 water pump and timing belt. Buy the pump at least from honda if you can afford it, I haven't seen an aftermarket water pump yet thats worth buying.

 

CAN I USE THIS?!

Is this the CFK sensor ?

 

Thats the sensor, you can just reuse the old one though, its the oil pump you'll need (the JDM pump doesn't have provisions to mount the CKF sensor)

 

Don't reuse the oil pump...Idk how your old motor went but if it was knocking the oil pump could be at fault. Buy a new oem joint.

 

k , so oem oil pump, oem timing belt, oem water pump.. anything else ?

 

while you are at it, replace the alternator belt and or any other accessory belt .

And you should be golden for another 100,000k

 

can i install the HX cvt tranny in my usdm 97 civic dx.. i installed the d15b 3-stage vtec into my civic with the p2j-j62 ecu already and am running it with my usdm auto tranny..motor runs fine, but when you put it in drive its in high gear..sux.. so i need a cvt tranny to make this work, and the only one i can find is the HX C4VA Multimatic tranny..just wondering if i can just bolt this one in and my ecu will work it and it will bolt in ok...

 

just to rephrase what should i get is an obd2 non vtec zc ECU correct?