[V8] Ingition sensors

[Dave Saad]

The timing sensors are two wire devices.  I would have expected the  
third wire to be a ground shield - but it does not look like it is  
connected at all.  If someone wants to cut the wire off a dead sensor  
you can verify for sure.  The brake sensors are two wire with no  
ground shield.

Dave


On Sep 17, 2008, at 6:56 AM, Tony and Lillie wrote:

> Dave,
>
> My first question is, where does the third wire com from? I thought  
> an ABS sensor had 2-wires? So, is the third just an extra ground or  
> something?
>
> I do love the make-it-work mentality, though.
>
> Tony
>
>
> ----- Original Message ----- From: <dsaad at icehouse.net>
> To: <v8 at audifans.com>
> Sent: Monday, September 15, 2008 2:32 PM
> Subject: [V8] Ingition sensors
>
>
>
>
> As predicted - I had a timing ref sensor go bad - causing the usual  
> hot
> start problem. After I got it out, I can see that it does indeed
> "open up" when heat is applied. You can watch the
> resistance rapidly increase to about 2k - then poof - open.
> Actually, both sensors are doing it - meaning that they all fail after
> some period of time. I dissected one of mine, and can see that there
> was no oil or anything in it - they just go bad from heat cycles.
>
> (btw, there is several thousand turns of 0.002" magnet wire in
> there - probably gage AWG 42.5)
>
> Now - here is the crazy part
> -
> a wheel antilock brake sensor is the same device, and comes very
> close to physically fitting. I am going to install it and see if it
> works. From my bench testing, these sensors are way more stable
> under heat.
> I am also going to try to rewind my old sensor if I
> can find the wire somewhere.
>
>
> Wish me luck...
>
>
> Dave
> _______________________________________________
> Audifans V8 mailing list
> Send posts to: mailto:V8 at audifans.com
> Manage your list connection: http://www.audifans.com/mailman/ 
> listinfo/v8
>
> You can help keep the audifans site running by shopping at http:// 
> audifans.com/shop/
>