![]() |
![]() |
#1 |
JDM Knight
![]() Join Date: Feb 2008
Location: Southside,Dsm
Posts: 868
|
![]()
i have an obd2 b16 head, obd2 harness, alt, dizzy. can i just use the obd2 harness to in my crx? the crx has an ls swap already, so i dont need the dual point mpfi swap. its obdo, what would be easiest for not wanting to convert to obd1 yet. i dont have a dash i dont care if the body harness works, just wanna know if the motor will still be functionable.
![]() ![]() |
![]() |
![]() |
#2 |
JDM Knight
![]() Join Date: Feb 2008
Location: Southside,Dsm
Posts: 868
|
![]()
its also an obd2 p73. i feel like putting everything obd2 on the head and harness all the way back should work? but does my key turn off the ecu or body harness? i plan on running mechanical guages anyways
|
![]() |
![]() |
#3 |
JDM Soldier
![]() Join Date: May 2013
Location: Okinawa, Japan
Posts: 268
|
![]()
You're making this waaaaayyyy more difficult then it is. Now I understand where all these super fucked up wire harness setups come from in Hondas.
Here is what you do, you put the head on, then use your stock obd0 harness. You'll need to buy a jumper harness for your distributor wiring, make a jumper, or cut the obd2 plugs off the distributor and wire the obd0 plugs on it. You'll also need to get an ECU jumper harness going from obd0 to obd1. (the reason for obd1 on the ecu is the obd1 ecu's are the ones you can chip) Then since the obd2 injectors are Saturated you'll either need to get some Peak and Hold injectors or change your wiring removing the resistor box. If you're not good at all with wiring just get some peak and hold injectors it's wwaaaayyyy easier and less complicated that way. Now to finish things up you'll need to get some sort of tuneable ecu and get a tune. The great thing is, you don't have to do anything crazy and all of your gauges will work!!! No crazy wiring is needed either! Isn't it wonderful? |
![]() |
![]() |
#4 | |
JDM Knight
![]() Join Date: Feb 2008
Location: Southside,Dsm
Posts: 868
|
![]() Quote:
![]() |
|
![]() |
![]() |
#5 |
JDM Knight
![]() Join Date: Feb 2008
Location: Southside,Dsm
Posts: 868
|
![]()
i have no guages in the car, and dont plan on putting a cluster back in the car......
|
![]() |
![]() |
#6 |
The Tranny Guy
![]() Join Date: May 2007
Posts: 2,007
|
![]()
But, to be able to tune the car, you will need it on an OBD1 ECU. If you are using an LS/VTEC setup, there is no factory ECU that is tuned for that.
|
![]() |
![]() |
#7 | |
The Tranny Guy
![]() Join Date: May 2007
Posts: 2,007
|
![]() Quote:
|
|
![]() |
![]() |
#8 |
The Tranny Guy
![]() Join Date: May 2007
Posts: 2,007
|
![]()
PREACH!!!!
|
![]() |
![]() |
#9 | |
JDM Soldier
![]() Join Date: May 2013
Location: Okinawa, Japan
Posts: 268
|
![]() Quote:
Seriously read my first reply again. Super easy, fuck you don't even have to do any wiring (well except for the 3 vtec wires) if you don't want to, rywire sells distributor jumper harnesses and ecu jumper harnesses. Then all you need to do is buy a chipped obd1 ecu, and some peak and hold injectors. From there everything is literally "plug and play" |
|
![]() |
![]() |
#10 |
JDM Soldier
![]() Join Date: May 2013
Location: Okinawa, Japan
Posts: 268
|
![]() |
![]() |
![]() |
#11 |
JDM Soldier
![]() Join Date: May 2013
Location: Okinawa, Japan
Posts: 268
|
![]()
Oh and one more thing, you can't just slap a vtec head on an LS and not tune it. You will need to tune it, no stock ecu out there is properly setup for running an LS/V motor.
|
![]() |
![]() |
#12 | |
JDM Knight
![]() Join Date: Feb 2008
Location: Southside,Dsm
Posts: 868
|
![]() Quote:
![]() |
|
![]() |
![]() |
#13 | |
The Tranny Guy
![]() Join Date: May 2007
Posts: 2,007
|
![]() Quote:
|
|
![]() |
![]() |
#14 |
JDM King
![]() Join Date: Mar 2011
Posts: 1,156
|
![]()
honestly I would just get custom harness.
It should not cost more than $315 for one. I know cause I have one. milspec wiring, loom, lables, new oem pin/crimps, oem clips, YOU WILL still have to get a obd0 to obd1 jumper harness because fucken EF wiring setup is goofy, covert to OBD1 DPFI to MPFI tuck harness + mesh loom + labeled connectors NON MILL SPEC wiring (you STILL have to USE / provide me a obd0 to obd1 jumper) EF/DA are goofy because they have the shock tower plugs which has mixed wiring of engine sensors & FRONT chassie sensors/connectors. So when I make this harness it's designed to plug and play to the shock tower plus too. ![]() notice the yellow connector at the top of image, that plugs into the EF chassie. (eg/ek/dc don't have these) Bottom of picture you see a big black & green connector, that also needs to plug into the ef chassie (eg/ek/dc don't have these) then you see the 3 ecu obd1 connectors (gray) that plugs direct into your OBD1 ecu. Your "obd0 to obd1" JUMPER harness is intergrated into my single harness. Does that make sense? Now if you don't want to RUN ANY signals, wiring to any thing else in your car then SURE, all you need is a wiring harness from engine direct to ECU (and a few extra wiring to fuse box)... GL __________________ CNC Werx team4piston Jordan Tuned Rocket Motorsports Modern Automotive Performance |
![]() |
![]() |
#15 |
JDM King
![]() Join Date: Mar 2011
Posts: 1,156
|
![]()
if you want one made just send me a PM.
I could use MILSPEC wiring which his way higher grade for $55 extra (stiffer wiring, much more heat resistant to high temp) I could also add Raychem DR25 (vs. using mesh loom) but that stuff is spendy. __________________ CNC Werx team4piston Jordan Tuned Rocket Motorsports Modern Automotive Performance |
![]() |
![]() |
#16 |
JDM Soldier
![]() Join Date: Apr 2010
Location: Des Moines
Posts: 390
|
![]()
I literally did all of this about 6 months ago. Albeit, mine was in a DA, not a CRX, so i didn't have to worry about injectors. That will be your "hardest" part of the swap.
This has been done so many times there are multiple companies that sell conversion harnesses. DA's are OBD-0, similar to your CRX. I did a Rywire OBD-0 to OBD-1 conversion harness and repinned my distributor back to OBD-0 on both sides. Then run the 3 wires for VTEC and boom baby go, you have a fully funtional motor, as long as you didn't jank it up and not run auto fans and things like that. http://hondaswap.com/general-tech-ar...ls-vtec-85477/ ^^^ This has so much information in it I shit vtec material for a week. That should help a little bit. I cannot help with the injector wiring though. GL bud. - Brandon __________________ I want your DA parts! LS/V high compression build in progress. |
![]() |
![]() |
#17 |
Newbie
![]() Join Date: Mar 2013
Posts: 12
|
![]()
you will need an obd 0 to obd 1 ecu jumper harness, obd 0 to obd 1 dizzy harness and obd 1 ecu. I also ran an injector resistor box delete to run saturated obd 1 injectors as well.
__________________ Prodigy Race Engines(P.R.E.) R O C K E T M O T O R S P O R T S https://www.facebook.com/Rocket4Life R.D.R. 240/153 82X89mm B http://honda-tech.com/showthread.php?t=3092090 |
![]() |
![]() |
#18 | |
JDM Soldier
![]() Join Date: Apr 2012
Location: ottumwa ia
Posts: 151
|
![]() Quote:
|
|
![]() |
![]() |
#19 |
JDM Soldier
![]() Join Date: Apr 2010
Location: Des Moines
Posts: 390
|
![]()
And IIRC, you can reprogram most ECUs to run Vtec and all that jazz haha.
__________________ I want your DA parts! LS/V high compression build in progress. |
![]() |
![]() |
#20 |
The Tranny Guy
![]() Join Date: May 2007
Posts: 2,007
|
![]()
The abilities of OBD0 ecu's using TurboEdit as compared to what a good OBD1 ecu can do on Neptune/EcTune/Hondata is like comparing an Apple IIc to a new Mac.
|
![]() |
![]() |
#21 | |
JDM Soldier
![]() Join Date: May 2013
Location: Okinawa, Japan
Posts: 268
|
![]() Quote:
![]() |
|
![]() |
![]() |
#22 |
JDM Soldier
![]() Join Date: Apr 2012
Location: ottumwa ia
Posts: 151
|
![]()
I do have a good stock PR3 B16 ecu ill sell you and it is chipable.. id rather keep the car obd0 myself also. if it was me
|
![]() |
![]() |
#23 |
JDM Lover
![]() Join Date: Nov 2013
Posts: 55
|
![]()
bump
|
![]() |
![]() |
#24 |
Newbie
![]() Join Date: Nov 2013
Location: Norwalk,IA
Posts: 9
|
![]()
Bump! That's my head lol
|
![]() |
![]() |
Thread Tools | |
|
|