hey i got a question. (could be a dumb one!)
i'm currently making a custom convertion harness from euro obd-2 to 0bd-1,

this process involves replacing the dizzy to a obd-1 dizzy.

so i got the harness for the new obd1 dizzy now and 3 wires from it are in a brown sleeve with shielding. the shielding starts about 3-4" from the connector and ends at about 12" after that. and its not connected to anything.

is that ok? do i need to connect it to anything? :S

sorry if this question is dumb but i'm not an electrician.


thankz

 

here is a pic of the connector side.
it was folded nicly outside the sleeve with ducktape around it. i dont think it was connected to anything on the old engine bay it was.

 

here ya go

that is indeed an RF shield for the sensor. The dizzy has three shielded wires, the o2 has one, and knock had one also.

<FONT COLOR="blue">Racepak</FONT> If you give me a minute, I can provide you with pictures of my solution. Those wires poking out of the brown cover extend all the way from the dizzy connector to the main engine harness connector. This is called an RF shield.

To maintain the proper signal, you must connect the shield to ground. Only do this on ONE end of the wire though or else you will actually make an antenna instead of trying to cancel out the noise

They make wires that already have shielding around it... an example of it is found here
http://www.aircraftspruce.com/...l.php

The wires come in a few types... the OEM version is just bare uninsulated wire spiraled around the insulated condictors. The link above uses a braided weave of uninsulated wires. The kind that I use has foil wrapped around the conductors.

If you need any help, PM me and I will try to help as best as I can. I will show you mine in a bit.