[Shotimes] Tach Again

[D Potter]

I don't have my CD on this laptop, but I can tell you that the SHO's tach is
not attached to the ignition coil. The older SLO's can do that because there
is a single trigger signal going to a single coil. Divide by 6 and you've
got your rpm. IIRC, the tach signal for the SHO is tapped off the base
timing signal, either before or at the PCM. If you don't get an answer
later, I'll try to get on my server and find out the info for you.

DP




----- Original Message -----
From: "Jonathon Beisler" <JBEIS001@stvincentshealth.com>
To: <shotimes@autox.team.net>
Sent: Friday, January 03, 2003 1:19 PM
Subject: [Shotimes] Tach Again


> Okay, all, I know that this will be the third time asking but I wanted to
know if any one had any ideas about where the Tach is connected to the
engine. I looked under the Electronic Ignition section in the Helms but of
course, under the tach connection sub heading all that it has is a warning
not to ground the connector as it will damage the ignition coil.  I swear
someone upstairs doesn't want me to get this fixed.  Just for the hell of
it, I looked under the distributor ignition section and the tach there
connects to the ignition coil.  Does anyone have a Helms that would be
willing to check and see if their's mentions where the tach actually
connects?  The section for this in my 94 Helms manual is 03-07B and the tach
connection is listed on the 9th page of that section.  I am at my wits end
and I am about to pull out what little hair I have left.
> Thanks guys, Jon B.
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