Hi Randy,
    Watch the tach, it should twitch.  In order for the tach to twitch the coil must get + battery on the plus side,  and the
digifant ecu coil driver transistor sends a minus pulse (grounds)  coil minus (the tach monitors this minus signal) .  The ecu needs
a hall signal to activate the coil driver.  You could have a bad ecu,  try another. They often fail like you describe especially the
triumph / adler ecus.  A smart rap will sometimes bring the ecu back to life for awhile.

Darrell

----- Original Message -----
From: "Randy Herd" <randyherd@HOTMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, January 16, 2001 8:37 AM
Subject: 86 running problem

> On Saturday my 86 started an occasional miss.  The tach would drop to zero
> and then jump back up.
>
> Last night it started sputtering and after I got it home it would start and
> die in less than one second.  After that It would just crank with no
> starting.
>
> I pulled the coil wire and there was no spark to the block when cranking.  I
> used my spare 53 relay and swapped them all round with no effect.  I then
> replaced the coil.  It will start and die and then crank without starting
> until after it sits for a while.  I can hear the fuel pump kicking in.
>
> Since it sort of starts, why is there no coil wire spark to the block.  Is
> this a fuel problem (filter). I need a hint.
>
> Randy
>
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