Why not perform the continuity and voltage
checks as listed in the Bentley.  These tests will
check your coil, hall sender harness, ECU
and the hall sender. You can do all these checks
with volt/ohm meter.

JB 88GL Guido

On 3/1/09 11:36 PM, "David Beierl" <dbeierl@ATTGLOBAL.NET> wrote:

> At 11:27 PM 3/1/2009, Scott Daniel - Turbovans wrote:
>> it would be interesting to rig a timing light so you can observe it while
>> driving.
>
> Actually, rigging a logic probe to the Hall sender input of the ECU
> would immediately tell whether the distributor/wiring is the culprit
> or not.  Or a scope, of course.  But last I knew Radio Shack sold a
> logic probe for $25.
>
>
>   --
> David Beierl - Providence RI USA -- http://pws.prserv.net/synergy/Vanagon/
> '89 Po' White Star "Scamp"