Ignition control unit and coil

[Huw Powell]

>>>thanks for the detail explanation....i did understand most of it.....is there 
>>>a full-proof way of checking the hall sensor (attached to the distributor) to 
>>>make sure it is working since the control unit is a remove/replace item to 
>>>see if it was bad.
>>
>>The only way I can think of is to put an oscilloscope on it.
> 
> 
> No, there's an official test.
> 
> http://www.isham-research.com/quattro/wiring/Typ85/mac01pin.html
> 
> (Why do I bother?)

You didn't.  I waited a week or so before making my wild guess.  All you 
had to "bother" to do was post the url in the first place for this guy, 
right?

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/