ok, my friend said to take the red wire (red=12v source, black=ground, grey=o2 sensor) and put it where the radio fuse is. take out the radio fuse, strip the end of the red wire and smash it in and put the fuse back. the radio fuse spot will work for this correct? i just want to be extra cautious and i get this vision of the gauge blowing up or whatever.

ok, and when i splice into the o2 sensor wiring....how do i direct the grey wire from the interior to under the hood? just through one of the holes in the firewall like where all the other relays and **** are coming from?

-(part 2 of the o2 sensor question)...with the grey wire spliced into the o2 sensor wire, will i have to protect the grey wire somehow? or can i just let it dangle around in the engine bay (seems like a bad thing to me). should i wrap it in that black plastic wire tubing **** (don't know the name)?

i have no experience with electrical ****....so of course any help would be awesome. thanks guys.

-cody

 

Remove the fuse, and then turn the ignition ON and check with a tester (a simple light bulb would do) to see WHICH SIDE OF THE FUSE opening still has power.

That is the side YOU DO NOT WANT to attach your RED wire to.

What you want to do is place the RED wire to the other side of the fuse so it is protected by the fuse itself and not "Hot Wired".

Make sence????

As for attaching the O2 Wire, attach it INSIDE the car to the wire harness right before the ECU. (You can use a plastic wire "Tap" for the O2 connection)

No need to run the wire all the way to the engine bay.

So, pull out your Helms and find the O2 connection @ the ECU.

(I don't know where it exactly goes at the moment, so you do the research)

 

ok, i'm pretty much set up for doing this now. but my chilton manual is at my friend's house (hour round trip), so i cannot pick it up. does anybody know which wire is the one to the o2 sensor coming off of the ECU?

thanks!

-cody

 

The o2 sensor wire on the ECU harness is a pinkish color, with silver markings. I think it's C19 or something...

How about this:
Let's say you just removed the carpet and the metal ECU shield, so your looking directly at the ECU while it is still plugged in. There are 3 seperate harness plugs that connect to the ECU, all attaching to the left side. The O2 sensor wire is located in the bottom of the 3 harness plugs. Remove that plug, and it has like 20 wires attached to it. If you are facing the plug (looking into the female pins) the O2 sensor wire should be the bottom left (unless you have it upsidedown).

This is considering you have an Si harness. Make sure it's the right color, if it's not then you have the wrong wire.

 

ok, now i don't now which fuse to take out for the red wire. i saw a bunch of ten amp reds and a couple others (like a 15 and 20 i believe). it's not that i'm lazy looking into this, its just that my damn chilton isn't here.

anybody know which fuse to go for? thanks.

-cody