help with 3.2l conversion wiring, have a PMS 3.2l to 914-4 conversion cable but... Options

[jim912928]

Well, I have all of the mechanical work done for my 3.2l motronic conversion. Now I'm trying to figure out the wiring. I purchased the Patrick MotorSports conversion harness a few years back. It allows me to eliminate the relay board. However, electrical is not my forte...so I have some real questions on the "trunk" wires from the 3.2l harness and what to do with them. The engine, dme and wiring harness are all from the same car. So, here are my questions and you can relate them to the pictures as shown:

1. picture named "DME help" circle #1: by the dme connector...there are two little stub connections that seem to come out of the DME connector and both wires are brown....do these need to go to anything?

2. picture named "Trunk help" circle #2: I marked these fuel pump...do I cap these because I'm using the 914 wiring or do I need to connect them somewhere?

3. picture named "Trunk help" circle #3: I marked this positive battery...does the 914 harness cover this or do I need to connect it to the battery also?

3. picture named "Trunk help" circle #4: green and green/yellow wire...have no clue what this is?

4. picture named "Trunk help" circle #5: black wire by the wires I labeled "fuel pump"...have no clue what this is?

5. picture named "Trunk help" circle #6: white connector with a black, black/purple and yellow wire...have no clue what this is?

I also would like to know where you usually mount the DME and where do you pass it through from the passenger compartment into the engine compartment..and once on the engine compartment side...where do you route it up to the engine? Have pics from those angles?

Thanks all in advance!

Jim

DME help:


Trunk help:

[shoguneagle]

Now you are tracking on the right path. You might consider that the wires for the start only and start & run positions will end near the instruments. Lay out the wiring harness and get the general layout of the different endings along with the relay and computer placement. This little function will or should answer a lot of questions you may now have with all this information.

If that relay under the right seat does the same thing as under 74, you probably want too consider eliminating it entirely. On the 74, the relay is a weight pressure switch which requires someone/weighted object to in in the seat before you can start the car. The elimination would be to connect the incoming large yellow wire and the large yellow wire going to the starter.

Now back to the ignition positions: Start & Run - find the fuse that the wire going back to the old relay board. I would take a look at the side of #9 fuse to see where you can get power. Start Only - should be a little different since you have to tap into the the wire going from the ignition switch (#50 at the switch; color yellow; verify that it goes to the starter via #1 pin connection on the 914 side of the 14-pin connector (ref: Patrick's Adaptor). I would do this tap somewhere down line from the ignition switch and somewhere near the engine harness termination point for these activities. By doing this above you will keep the original harness intact except for the Start Only position and what you may do to eliminate the relay under the right seat.