Well my EG 9 got stolen recently.
Before that I use to have a really mint EF. Now I'm thinking about getting another ef hb.

It's hard to find local EF HB SI that are clean. So I found a few DX HB that are fairly clean inside and out.

I already have the GSR swap + apexi turbo kit waiting at home that I was going to install into my eg9.


How much work is it to convert to MPFI and OBD1?
**** can I do the MPFI & OBD1 conversion all at once or is that not recomend?

 

you might want to keep it obd0 when you do the mpfi swap first. just to maek sure everythings working.
I dont follow you on the gsr swap. I thought you were asking about dx and mpfi. Are you saying, is it worth it to do DPFI->MPFI+OBD1 then later swap with a GSR engine????

but dpfi->mpfi is worth it imo. esp if you want to turbo that dseries bish.

 

It would be cheaper to throw the gsr in. all your gonna need for mpfi is the resistor box. Plus convert to obd1

 

You're really not going to have that much more wiring to do. But you might as well throw the GSR motor in first.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GRCCRX911 &raquo;</TD></TR><TR><TD CLASS="quote">It would be cheaper to throw the gsr in. all your gonna need for mpfi is the resistor box. Plus convert to obd1</TD></TR></TABLE>
if he uses the injectors off of the b18c then he won't even need the resistor box. He'll just need to solder the obd1 style injector clips onto his old harness.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91IntegGS &raquo;</TD></TR><TR><TD CLASS="quote">
if he uses the injectors off of the b18c then he won't even need the resistor box. He'll just need to solder the obd1 style injector clips onto his old harness.</TD></TR></TABLE>

That is true

 

DX is cheaper and lighter than an Si. Gives you more cash for other stuff.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by virginia_dude &raquo;</TD></TR><TR><TD CLASS="quote">DX is cheaper and lighter than an Si. Gives you more cash for other stuff.</TD></TR></TABLE>

well i know that egf si hb are 2,291lbs .... how much are DX weigh?

Also so you guys think i should just physically swap in the GSR swap 1st then worry about the wiring (mpfi & ond1 conversion) all at once?


How hard is that?.... I suck at wiring and would need full writes and wiring diagrams.. heehe

 

Go in todays star tribune classifieds. Theres a 1990 civic in the "misc" category of cheap wheels. Its 350, all it says is it won't start.

The mpfi wiring isn't that hard. Theres a lot of good directions on here but a lot of info ins't mentioned. My injector wires were a different color than everyone elses and there were other issues that I had to deal w/along the way. I collected all the how-tos i coud get, compiled all the info and compared it to my helms and then drew/wrote out what I had to do. It made it easiler to really understand what was hapening than blindly following directions. When its done theres a night and day difference.

 

Do the Dx to OBD1. I can make both harnesses(DPFI - MPFI and 0-1) at one time and you can plug it in and go.

Jason

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Charlie Moua &raquo;</TD></TR><TR><TD CLASS="quote">well i know that egf si hb are 2,291lbs .... how much are DX weigh?
</TD></TR></TABLE>

dx weighs about 2100

 

It should be worth it.

I just picked up an STD, and I'm going through the same thing right now. I'm taking my b18c out of my crx hf that has been converted to obd1 all ready, with one of Jasons harnesses , and putting everything into the hatch.


Jason, in my case insted of doing all the wiring how much easier would it be to get a dpfi-mpfi harness from you?

I just want to make sure I have all my bases covered so when I pull it all out, it goes into the hatch smoothly.

 

My '91 DX weighed 2103 stock, and MPFI shouldn't deter you from doing the swap, it's not that hard. Just print out some write-ups and you will be fine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1st-hybrid &raquo;</TD></TR><TR><TD CLASS="quote">Jason, in my case insted of doing all the wiring how much easier would it be to get a dpfi-mpfi harness from you?

I just want to make sure I have all my bases covered so when I pull it all out, it goes into the hatch smoothly.</TD></TR></TABLE>

Check your PM bud.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blown90hatcH &raquo;</TD></TR><TR><TD CLASS="quote">Do the Dx to OBD1. I can make both harnesses(DPFI - MPFI and 0-1) at one time and you can plug it in and go.

Jason
</TD></TR></TABLE>


more info please. I hate wiring. if you can make my life easyer I will certianly pay you the estra $$. Jason I did not know that you sold or made these kits MPFI kits!

how much?
Also how much work will it require on my part to install it.
What do you need from me?

 

get an hf

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Charlie Moua &raquo;</TD></TR><TR><TD CLASS="quote">more info please. I hate wiring. if you can make my life easyer I will certianly pay you the estra $$. Jason I did not know that you sold or made these kits MPFI kits!

how much?
Also how much work will it require on my part to install it.
What do you need from me?</TD></TR></TABLE>

You send me the std/dx engine harness, a spare MPFI harness for plugs and I will build you a plug and play engine harness / 0-1 harness. 125 for the MPFI conversion and 150 for the 0-1 harness. You will plug it in. Fire that sucka up and vroom vroom vtech vtec bling bling outta here.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">get an hf</TD></TR></TABLE> Not only is my brother is a believer.....he has a great point here. The HF....I think 88 was the lightest EF made.

 

you forget to mention that they will still have to run the wires for the extra injectors and distriburor sensors from the ECU to the engine bay.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91civicDXdude &raquo;</TD></TR><TR><TD CLASS="quote">you forget to mention that they will still have to run the wires for the extra injectors and distriburor sensors from the ECU to the engine bay.</TD></TR></TABLE>


NOPE. When they send me the engine harness, and I build them an OBD0-1 harness, I add all the wires into the engine harness loom and directly to my 0-1 harness side. They just plug it in.

 

so you make an OBD1 jumper harness that plugs into the OBD1 ECU and factory OBD0 ECU harness, and also has the extra wiring added? there would still need to be a disconnect somewhere to be able to feed it through the firewall to the engine compartment main plugs.


^^ as seen in this crappy diagram, you'd still have to have the MPFI wires connect to the engine harness at some point....

I knew a guy once that converted his 89 DX to MPFI by removing the *entire* car wiring harness from tail lights to headlights and replacing with a 91 Si harness.. he had to splice in all kinds of plugs since they are different from 88, 89, and 90-91


Modified by 91civicDXdude at 2:29 AM 2/27/2004

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91civicDXdude &raquo;</TD></TR><TR><TD CLASS="quote">so you make an OBD1 jumper harness that plugs into the OBD1 ECU and factory OBD0 ECU harness, and also has the extra wiring added? there would still need to be a disconnect somewhere to be able to feed it through the firewall to the engine compartment main plugs.

I knew a guy once that converted his 89 DX to MPFI by removing the *entire* car wiring harness from tail lights to headlights and replacing with a 91 Si harness.. he had to splice in all kinds of plugs since they are different from 88, 89, and 90-91</TD></TR></TABLE>

Correct....there will be some disconnects at the ecu to route it through the firewall....but both sides will be labeled for an easy install. Maybe I will just make a plug that has all them on it....Hmm...what plug has 12-16 locations in it...hmmm.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91civicDXdude &raquo;</TD></TR><TR><TD CLASS="quote">^^ as seen in this crappy diagram, you'd still have to have the MPFI wires connect to the engine harness at some point....</TD></TR></TABLE>

If I am converting his engine harness too....like I stated above...then I will have all the wires added to the engine harness. The C1/C2, B10/B12, etc for the DPFI will be ran from my harness, incorporated into his engine harness and all done. There will be a disconnect at the ecu harness to enable him to run it through the fire wall.

 

Did you get my IM?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Charlie Moua &raquo;</TD></TR><TR><TD CLASS="quote">Did you get my IM?</TD></TR></TABLE>

Check your IM

 

IM again Jason!