This is a basic "how to" showing the steps I took to change a internal coil from a f22a to an external coil h22a distributor. What makes this conversion tricky, is that the USDM h22a Distibutor used comes originally set-up for an external coil.

On the right side of this picture is the (internal coil) distributor from the f22. We will take the parts from this and add to the H22a (external coil set up) distributor on the left.

Here is what the internals look like side by side.

Start by removing the coil. Disconnect the wires leading to the coil. There are 2 phillips head screws that hold the coil in place. Transfer the coil to the h22a distributor housing.

Now we will get into the wiring. This step shows to disconnect the green wire from the h22a ignitor.

In this next picture You can see the jumper (yellow wire/coil negitive) That was removed from the f22a distributor and in place on the h22a.

With the coil in place and the negative jumper attached, we will now work on the positive connection. This following picture shows that right next to the green wire (that was disconnected) is the black with yellow stripe. You will cut this wire aproximately half way between the connector and the plastic tubing. From the f22a distributor you will disconnect the same wire and cut in the same place. This should leave you with a "Y" connection with the connector for the ignitor on one end and a ring terminal on the other. The 2 cut ends will be soldered together. Transfer this wire to the H22a distributor. This will be the only (non factory) connection.

Strip the black/yellow stripe wire and solder and heat shrink the ends together.

Back to this picture for a second. The disconnected green wire can be left in place just be sure to tape it up good so it wont get caught on any of the rotating parts. I however cut it off at the tubing and pull the wire out of the distributor all together.

Here is a shot of the connector with the green wire removed. This wire is completely removed all together as an extra precaution.

This is what the completed distributor should look like. Almost completely factory.

 

Wait, the f22a in my 92 Prelude has an external coil. Is this essentailly the same process I need to follow when doing my JDM H22 swap (replacing f22a distrib external coil with JDM H22a internal coil), or can I just bolt the f22a distrib. in place and buy the h22 coil mounting bracket from Honda?

 

In your case, the conversion would be opposite. The JDM engines come already with the internal coil and you are already wired for external. The f22 distributor will not work on the h22a. I am working on a post for this as well. I should have it up soon. Bear with me.


[Modified by 2point6, 11:02 AM 12/2/2002]

 

Awsome! PLEASE let me know when/if you get it done. . .my motor should be on my doorstep mid-next week.

 

hi...just wondering...

i have an external H23 dizzy but my JDM H22A came with an internal dizzy. i bought the distributor cap for a Civic Si which works with the H22A dizzy. but right now im not getting any spark.

I heard i need to splice the yellow and yellow/black wires together somewhere. Is this true? if so where are these wires located? is the yellow wire the one located on the dizzy itself?

or is it the wire to the left of the dizzy that plugs into the component to the left of the dizzy?

 

dont dig up threads like this dude....but while im here, all you need to do is connect the big black/yellow from the engine harness to the black and yellow that goes into the distributor, use your brain, how else is it gonna get power??

 

What should he do then?

If he created a new topic for his question everyone would tell him to search - i'm happy he did the right thing and brought up an old topic.

Good info in this thread btw.