Not sure if this has been done on CC but I found a good write up on a DIY how to add DSM injectors to a civic with pics.
Bizzar said:This is my first write-up so bear with me. Tons of pics 56k beware. This should explain how simple it is and CHEAP if you do it yourself. No resistor box needed but you can buy one for $15-30. This method costs about 4 bucks from Radio Shack if you have the toolsI searched all over the place and could not find a nice write-up on this install so I decided to do one myself. Enjoy!
Tools Needed:
4 Injectors. Can be purchased for apx $40-75 I paid $56 shipped for a set of 450cc 1gen DSM injectors usualy from turbo Eclipse or Talons. There are two types that you will most likely run into. Blue tops and Black tops. The black tops are from 2ng gen and are newer but will work fine.
4 10ohm 10 watt inline resistors available at Radio Shack $1.70 per pair
Heat Shrink tubing $2
Optional : project box for a cleaner install available at Radio Shack for apx $5
Soldering Iron, rosin core solder and optional flux. Be sure to use acid-free or corrosion free solder.
Multi-meter
Apx install time took me less than 1 hour even with taking all the pictures. On with the install!!!!
First lets take a look at the injectors and resistors. The O rings pictured will be ground down to fit in your intake manifold.
Remove the little "tang" on the injector where the connector plugs into. I used a pocket knife. It doesnt have to be pretty just enough material removed for your Honda connector to plug in.
Lightly grind or sand the O ring down and test fit it into your manifold. You want a nice snug and flush fit.
Locate the connector near the left (driver side) strut tower and remove the plug. Remove the wire loom and tape to gain acess to the black/yellow wiring.
Using a multimeter set to ohms, probe the yellow/black wire in the injector clip and the other end in the strut tower connector. If you use the alarm feature on your meter it will "beep" when you have found the correct wire. If it does not beep then you will see a low ohm reading.
Cut the wire and tin it. Tinning is adding solder to the wires to help make a better connection to the resistor we will be installing. I like to dip the ends in flux so the solder sticks to the wires better but you should not have a problem.
A tinned wire with solder
For a water tight seal and a longer lasting setup I recommend using heat shrink tubing. Place a piece of heat shrink over both ends of the cut wire BEFORE making any final solders to the resistor.
Solder each end of the cut wire to the resistor. It is non-directional so it does not matter which way the resistor goes in.
Seal up each connection with heatshrink. You did remember to put the heatshrink on before you soldered the wires right?
Now repeat each step for each injector wire. Take some zip ties or wire ties to make things a little neater. Tape the wires together and re-install the wire loom. If you want a really nice clean setup pick up a project box from Radio Shack and place the resistors inside and secure it somewhere to the body or the back of the strut tower.
The finished product of your hard work!! Turn on the ignition and make sure look for any fuel leaks before starting your car.
Durp.