White wire w/orange stripe from ign module plug

[meanchicken]

What's this wires purpose?
Last night I was driving about, and all the sudden I started getting a intermittent SES light with the engine cutting out for blip and then back on.
It would happen at about 2500-3000 rpm under light/normal acceleration as I accelerated from a stop and then go away when I took my foot off the peddle or when I evened out the peddle pressure and cruised.

Got the GN home and started looking around under the hood for anything obvious/usual suspects.

I found that my harness going to the ign module plug was resting against the rear most intake manifold stud, and had chaffed through the elect tape. The insulation for this white wire with the orange stripe also appeared to be nearly chaffed through. I moved it way from the intake stud and put a little rubber cap over the stud to keep it from chaffing the wire more and it seems to have cured the problem.

I'll still need to go back and make a proper repair of the harness and wire, but I'm just wondering what signal this wire carries.

Thanks!
Tim

 

[meanchicken]

Anyone?

Thanks.

 

[salvageV6]

Tach. or EST perhaps.

Which pin letter it attached to A - P. Some letters not used.

 

[GNVenom]

There is no white/orange stripe wire on the ignition system. It could be solid white, or maybe a pink/white stripe.

There are gray/red stripe wires, but not close to what you're seeing.

 

[meanchicken]

Not to deny what your saying is correct...but...
I got two of them.
Maybe they faded over the years....I dunno...but there are two white wires with orange stripes going into my ign. module.

I lifted the back shell on the ign module to see what pin the "white with orange stripe" wire went to....and found two of them.
Not sure what the pin numbers are, but as you look at the back of the connector that plugs into the side of the ign module, one of the white w/orange wires goes to the second pin from the left end and the other goes into the second pin from right of center.

 

[GNVenom]

Look on the underside of the connector. It's labeled A-G and H-P, no I or O.

This will tell you which cavity the wire is in.

 

[gsgns4me]

Borrowed (stolen?) from the VortexBuick site....

 

[meanchicken]

Thanks!
That helps.
What I'm calling white with orange has got to be the grey with red wires. I went back and looked at them with a better light and...I guess they are grey with red.

So they come from the crank and cam sensors per the diagram...It makes sense that if you get one of those grounding out to the intake....it would cause the issue I was having.

Thanks!
Tim

 

[GNVenom]

If the CAM sensor gray/red wire shorts, you kill the ign. module probably permanently. If the CRANK gray/red wire shorts, no spark.

Funny how the wire colors change, huh? I see it all the time.

 

[meanchicken]

Thanks for the help!