I started on my mpfi swap today, and I'm about half done with it, but I have a few questions. I need to know how to wire up the distributor, I'm de-pinning the Si pins and using my DX plug, but the colors don't match from one to the other. Here are the wire colors:

Si-
peach
white/red
white/blue
blue/green
blue/yellow
peach/blue
white

DX-
orange/blue
orange
tan
tan
tan/blue

Also, I need a diagram showing where all the lines and hoses go from the dpfi manifold to the mpfi one. I've got a vacuum line diagram, but I need to know where the others go.

Thanks honda-tech you're the best


Modified by crex23 at 3:38 AM 7/24/2005

 

This site may help

http://www.fourthgenhatch.com

 

Thanks for the link, it's where I got most of my info (including the wiring) from. But I still need to know how to wire up the distributor keeping the DX plug, and a diagram of where the lines and hoses connect from the intake manifold.

 

PM "NikoZai"

i am too lazy to search in My Computer, and im sure he also knows...

 

I will PM him thanks.

 

More stuff just in case

DPFI to MPFI Fuel Injector Swap Guide #1
http://www.angelfire.com/d20/h....html

DPFI to MPFI Fuel Injector Swap Guide #2
http://www.geocities.com/teampimports/fuelinj.html

DPFI to MPFI Fuel Injector Swap Guide #3
http://www.geocities.com/c_rexboy/mpfi.html

DPFI to MPFI Fuel Injector Swap Guide #4
http://www.bladesilver.net/crx/

DPFI to MPFI Fuel Injector Swap Guide #5
http://www.fourthgenhatch.com/mpfi.html

 

I've got a question about the banjo fuel line on the DX, it doesn't seem like it will work. The DX manifold has a hole in the side, the Si manifold has a piece on the end of the fuel rail that unscrews. Do I have to buy an Si fuel line, and if so, can I get this piece at Autozone, etc or is it a dealer only part?

About the distributor wiring, I got this from Hcivic88's site. But why is there two sets of blu/yel and blu/grn wires? I need a diagram like this, but maybe I'm just not understanding it?



Be easy on me, this is my first mpfi swap

 

bump

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crex23 &raquo;</TD></TR><TR><TD CLASS="quote">I've got a question about the banjo fuel line on the DX, it doesn't seem like it will work. The DX manifold has a hole in the side, the Si manifold has a piece on the end of the fuel rail that unscrews. Do I have to buy an Si fuel line, and if so, can I get this piece at Autozone, etc or is it a dealer only part?

About the distributor wiring, I got this from Hcivic88's site. But why is there two sets of blu/yel and blu/grn wires? I need a diagram like this, but maybe I'm just not understanding it?



Be easy on me, this is my first mpfi swap </TD></TR></TABLE>

as for the fuel line, it is the same i cant see why u are having issues with it....

as for the wiring i dont understand exactly what you are asking, have u checked the links that "4banger69" put?

they also have more diagrams...

 

I got everything straightened out, the mpfi swap started up on the first try. But now I have to figure out code 4 (crank angle sensor)

 

that means u migth have switched some wires around in the distro wiring, or ur distro is bad...

 

Not to thread jack but I have a couple of questions..... Is it absolutely necessary to change the ECU and to me it looks like the DX throttle cable is way to long..does it still work?

 

you can make the throttle cable work, but it would be good to get one off of a civic with the mpfi, does not have to be an si. also about the fuel. you can dill out the holes an the fuel filter bolts a little bit bigger for more fuel flow, i made both of mine the same size (on one bolt, both holes, on both bolts)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TwztdSi &raquo;</TD></TR><TR><TD CLASS="quote">Not to thread jack but I have a couple of questions..... Is it absolutely necessary to change the ECU and to me it looks like the DX throttle cable is way to long..does it still work? </TD></TR></TABLE>

Yes you have to use a PM6 (or in my case which is auto, a PS9) ecu. The DX ecu is set up to run 2 injectors, not 4. About the throttle cable, mine works fine, when I fired the car up, I had to adjust it a little because it 'idled' at 3k, but now it idles normally.

 

I'm wanting to keep mine auto as well. can you tell me what car the PS9 ECU comes out of?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TwztdSi &raquo;</TD></TR><TR><TD CLASS="quote"> I'm wanting to keep mine auto as well. can you tell me what car the PS9 ECU comes out of? </TD></TR></TABLE>

The PS9 comes out the the 90-91 Civic EX auto. It is somewhat rare, hard to find, and fairly expensive when you do. I paid $80 for mine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crex23 &raquo;</TD></TR><TR><TD CLASS="quote">Yes you have to use a PM6 (or in my case which is auto, a PS9) ecu. The DX ecu is set up to run 2 injectors, not 4. About the throttle cable, mine works fine, when I fired the car up, I had to adjust it a little because it 'idled' at 3k, but now it idles normally.</TD></TR></TABLE>

some PM6's came in auto also FYI

they are also found is select EX's