obd1 converion plus MPFI

Thread Tools
 
Search this Thread
 
Old Aug 1, 2004 | 09:39 AM
  #1  
GoFastMotorSports's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Oct 2003
Posts: 527
Likes: 0
From: Long Island, NY
Default obd1 converion plus MPFI

Ok heres the deal. I got a y7 swap in my car right now. I want to put a y8 head and evenyually go turbo. The car is still MPFI.

I am gonna purchase from locashracing.com there obd0-1 conversion harness plus the distributor harness and the sub harness already wired for vtec.

I am gonna get a z6 ecu for the time being. The y8 head will be complete with all sensors and i am gonna use a z6 distributor.

What do I need for the mpfi swap? Since its gonna be obd1, I am guessing a si injector resistor box is not gonna work. And what do I need to do the the ecu? I understand the obd1 part of the swap,but the Mpfi still confuses me.
Reply
Old Aug 1, 2004 | 09:53 AM
  #2  
Jester88Si's Avatar
Honda-Tech Member
 
Joined: Nov 2003
Posts: 545
Likes: 1
From: Dallas, Texas, Usa
Default

Search if your friend.
Reply
Old Aug 1, 2004 | 10:39 AM
  #3  
Gant's Avatar
Honda-Tech Member
 
Joined: Aug 2003
Posts: 3,779
Likes: 0
From: Bay area, California
Default Re: (Jester88Si)

i had the same question a couple days ago since im doing a dx-mpfi and a obd 1 the same time im putting a d16z6 in my car

i was told just do the mpfi swap like the instructions say up to the part of the wiring up to the fuel resistor box then u gotta consult a 92-95 civic fuel wiring diagram for that part


i been told the wires that normally go to the resistor box get all soldered together, since obd1 injecters are high impedance they dont need a resistor to step the voltage down they need high voltage so no need for a resistor box
Reply
Old Aug 1, 2004 | 02:19 PM
  #4  
mrchaos's Avatar
Honda-Tech Member
 
Joined: Mar 2004
Posts: 454
Likes: 0
From: Hamilton, ON, Canada
Default Re: (Ba4)

the obd swap is the easy part, its just a new harness.

ba4 is right, do the mpfi swap first wiring the injectors without a resistor pack (92-95 style), then plug in your conversion harness.
Reply
Old Aug 7, 2004 | 09:26 PM
  #5  
thumbtack's Avatar
 
Joined: Jul 2004
Posts: 562
Likes: 0
From: Holland, MI, usa
Default Re: obd1 converion plus MPFI (GRCCRX911)

http://joetopp.no-ip.com/mpfi.htm

I just wrote this up myself cause I just did a swap from a dx to a d16z6 so I hope it helps. I had a heck of a time finding answers on what to do when converting to obd1 at the same time as a mpfi swap. If it wasn't for honda-tech.com I would have been screwed.

Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Wagonlife99
Tech / Misc
8
Sep 21, 2018 07:28 AM
OemED
Honda CRX / EF Civic (1988 - 1991)
19
Oct 10, 2016 08:19 AM
killerken25
Honda CRX / EF Civic (1988 - 1991)
12
Feb 6, 2012 12:04 PM
ASO
Honda CRX / EF Civic (1988 - 1991)
4
Oct 23, 2009 03:08 PM
shadow102
Honda CRX / EF Civic (1988 - 1991)
10
Dec 5, 2007 03:53 PM




All times are GMT -8. The time now is 06:36 PM.