Hall sendor

[J123fs at aol.com]

Mark,
I would look to see if you have a problem with the wiring that runs to the 
distributor and Hall sender. 
I have seen many problems over the years with the connection at the wires as 
they run into the plug; as they are rather thin and fragile they can break 
right at the plug causing intermittent problems. Try looking there, and if 
ness go to a junkyard and get another good plug ( take an ohm meter and check 
the circuit thru the plug while moving it around, if you loose your circuit 
you know the wire is bad).
Also, as you stated it may also be a temp related problem you should check 
the plastic plug that holds the plug receptacle to the distributor as this 
also fails, and as things heat up it may pull away or move as it expands 
causing intermittent contact.
 If that is not the source of the problem check the wiring under the plastic 
cover from the plug to the sender unit (after removing the cap and rotor) as 
it will sometimes break when the distributor shaft gets worn and loose and 
wobbles the hall sensor window such that it cuts the wire. If that's the 
case, you can sometimes solder it carefully after taking the distr. out and 
removing the hall trigger window.
Good luck, and e-mail me if you have any other questions, as I have BTDT 
before on the Hall sender before.
See ya
Johnny
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.audifans.com/pipermail/quattro/attachments/20010306/e9c1d546/attachment.htm