Audi Coupe GT temp sender question

[Chris Hall]

So I went out to look at the car again today, and I popped the
distributor cap off for the first time since my stalling / no start
problem.  Each one of the terminals has so much carbon build-up on the
bottom end (and also 3/4 of the rotor's tip), you wouldn't even know
you were looking at metal if the top half wasn't still shiny.  Soooo,
I'm guessing --maybe-- there's my problem.  I think I neglected to
check it up to this point because I had convinced myself that it was a
vacuum / wiring problem.

I tested the wires to the plugs and the coil wire, and (forgive me if
I have this backwards...) and the resistance was 6000 for the coil
wire, and 2000 for the plug wires, or the other way around.  I'm
guessing they're OK...

I'll let you all know what happens when I find a Bosch cap and
rotor... because PepBoys / AutoZone etc all carry caps that -don't-
have the little pins in them that my plug wires clip on to (which I
like).  Guess I'll have to wait until Tuesday for the good auto parts
place to open  :)



On 5/28/05, Huw Powell <audi at humanspeakers.com> wrote:
> 
> > I have a feeling the temp sender that tells the ECU in my 85 CGT what
> > the engine temp is might be bad.
> 
> Well, they are easy to test... just remove it, bring it into the kitchen
> along with your ohm meter, and prepare a container of ice water and a
> pan of boiling water.  When it is soaking in the ice water, it should
> read fairly high, around 2.5 k ohms as I recall.
> 
> In the boiling water (be careful of the heat, and make sure your heat
> source doesn't hurt any of your wires) the resistance should be down to
> around 100 or so ohms.  If that checks out, it's fine.
> 
> > Also, does anyone know when you can get one of those weird plug ends
> > that connects to the sensor?
> 
> Parts cars, usually.
> 
> By the way, did you replace all those molded vacuum and PCV hoses yet?
> 
> Recheck control pressure actuator current at warm idle?
> 
> --
> Huw Powell
> 
> http://www.humanspeakers.com/audi
> 
> http://www.humanthoughts.org/
> 


-- 
Chris Hall
badcomrade at gmail.com
"making girls cry since 1974"