hey whats up i have a 91 dx crx and i just got my d15 vtec in someone told me i had to change a motor mount in it which one is is it and what do i have to do??

the engine harness if i get the obd0-obd1 jumper wire up for mpfi and wire in the vtec will everything just plug into the d15b with the dx harness ???
any help with these 2 ?'s would help alot thanks
kevin

by the way this is my first swap so as much help would be good

 

You have to use the mount off of your old engine ( the motor mount near the timing belt ) and put it on the D15B.

 

so can i just use the stock mounts from the d15 off the rex now or do i have to buy another one?
or worse modifie

 

you will keep all of your old mounts. when you get the d15b there is a mount on the driver side of it (where the timing belt is). that mount is ment for the eg's so inorder for us ef bodies to use the motor you will need to take the driver side motor mount off of your old motor and place it on the d15b

 

ok thanks for clarifying that!

now the wiring whats the best way to do this my car as is is is still dpfi so what should i do to get this engine in?? i have a chiped p28 ecu obd1
thanks for the help guys keep the answeres coming!!

 

Did anyone else goet the front trannymount to line up when they put there d15b in? I couldn't line it up for the life of me! But I have a poly rear mount so I just left it off.

But anyway, yeah you have to swap your stock driverside mount onto you new motor.

For the wiring there are a few people here on H-T that sell Obd0-to-ObdI conversion plugs that make the swap easy as pie. But you will have to do an MPFI conversion first.

 

ok if i go with th obd1 jumper and do the mpfi swap .....can i run the injectors that are in the jdm engine and still run the resistor box with that and the obd1 ecu???


oh and another question sounds stupid but i dont care gotta ask i know the obd0 dont have a mafs but if i do this swap with d15b vtec and obd1 do i have to get a mafs

sorry for all the questions just tryin to learn and all this info will be helpfull for people doin the swap that dont want to ask

 

good question i need to know too

 

I'm in the middle of a swap myself. I got all the wiring done as to what the wiring is layed out for a 92-95 civic engine. All I have left to do is fill it up with fluids, install the radiator, and a battery. Then and only then will I know for sure. I noticed that the intake manifold that came with the JDM motor does not have enough manifold vacuum ports (-2). I am doing it on a HF. I used the HF engine wire harness and shorted all the wires going to the resistor box (the obd1 does not have a resistor box). The two wire connector I cut and soldered in a the connector from the jdm harness. I had to extend the wires for the MAP sensor, and 2 temp sensors. The JDM intake manifold has them in different location. (If this does not pass ref, I might go pick up a USDM used intake manifold). I've got my fingers crossed for it to fire up and hope the ref does not recognize the vtec solenoid ;P .

 

Im also swapping in a d15b vtec into my dx. It comes with the mpfi manifold, but i still need a harness. If any of you guys have one for sale let me know! Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by seearextasy &raquo;</TD></TR><TR><TD CLASS="quote">Im also swapping in a d15b vtec into my dx. It comes with the mpfi manifold, but i still need a harness. If any of you guys have one for sale let me know! Thanks</TD></TR></TABLE>

just modify your dx harness and add some hard wire to it...

 

Im learning alot cuz I will be doing this swap in about a month.

 

How do i modify the dx harness? Im pretty clueless

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by seearextasy &raquo;</TD></TR><TR><TD CLASS="quote">How do i modify the dx harness? Im pretty clueless </TD></TR></TABLE>

http://www.geocities.com/teampimports/fuelinj.html

 

What distributor do i need for my d15b vtec? from a 92-95 civic hatch? Also, what ecu should i use? It's staying automatic for the time being

 

use the z6 distributor and for the ecu use either the p28, pm6, or po8

 

thanks. Is there a better ecu out of those 3? Some have told me the p28 is better others have said the pm6 is better..