Date:         Wed, 12 May 1993 01:05:50 -0700
Reply-To:     Debi <mtngal@SIERRATEL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Debi <mtngal@SIERRATEL.COM>
Subject:      Hey all you shop mechanics with Oscillosopes? VW GREMLIN?

    Hey all you BLESSED mechanics with Oscillosopes?
<scratching my head...>
    I'm up late typing term papers, Auto Electronics, Mechanics, and
Welding... I won't be going to bed very early!...And way, so I thought I'd
toss this one at you...<grin>
    I'm doing my term paper on the ECU (Electronic control unit, for the
newbies)
    I am reading that Oscilloscopes let us see problems in circuits-
problems that can't be detected by other means, Right?
    One good example is electronic noise, an elusive and deadly enemy,
especially when it invades the engine computer through input sensor wires.
Electronic noise on the input sensor wire make the computers heart skip a
beat here and there (called computer resets).
    This causes an erratic operation of the computer and often leads to the
replacement of the ECU [[and several other parts]]...in a misguided effort
to fix the problem by replacing hardware...
    Is this our VW GREMLIN??  Could it finally be, this the dreaded
intermittent problem that has driven us insane on more than one occasion??
And a simple visit to our ECU with an Oscilloscope could help locate and
Identify him??...Naw...too easy!
    Well, you have to admit...
             ...it's my thought to ponder, just thought I'd share it with
the list...

                                 MtnGal

    P.S. I'd like to see what you see with your oscilloscopes!!  Curiosity
is killing me now!!!