diagnosis help

[Bernie Benz]

FYI:

Distributors:
3B: Audi 034 905 205Q, Bosch 0 237 522 019
7A: I don’t have these numbers with me right now. In Son’s 90Q-20V  
Bentley.
These distributors are fully interchangeable for all practical  
purposes, BTDT.
Differences being the 3B had a plastic shield between the Hall rotor  
and the spark rotor.
3B used a narrower tipped rotor, Bosch 1 234 332 414 R1
7A rotor, Bosch 1 234 332 301 R1,  identical to 3B if side ear width  
is trimmed to 0.435”
Hall sensor: Bosch 1 230 329 049


On Feb 11, 2012, at 2:30 PM, Nathaniel Merrill wrote:

>
> Just to complete the thread for posterity...
> I've confirmed that the ECU is supplying the correct voltage to the  
> hall sensor, even when the signal drops out.  I've also determined  
> that the wires are ok - power from the ecu is constant at the  
> dizzy, even when signal drops, and signal is dropping out at the  
> hall end - not on the way to ecu.
> So, it looks like my spare dizzy was indeed failing also.
>
> I need another to complete the diagnosis, and repair.
>
> Anyone have a good 20V dizzy, with metal gear they will part with?
>  		 	   		
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