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Date:         Wed, 1 Jul 1998 12:28:05 -0700
Reply-To:     David Bayer <bayer@SYBASE.COM>
Sender:       Vanagon Mailing List <Vanagon@vanagon.com>
From:         David Bayer <bayer@SYBASE.COM>
Subject:      Re: Fw: '87 ECU or ? correction
Comments: To: Vanagon@VANAGON.COM

>| > Tip for the day. Keep an eye on the tach. If the tach is ok the >| >primary coil circuit is ok. This doesn't eliminate the secondary (high >| >voltage side ) of the coil. So the coil could still be bad and causing no >| >spark. But it does tell you the digifant is pulsing the coil and the coil >| >has battery supplied to the plus side.

Another thng the tach can spot is a bad Hall Sender (or just a bad elbow on the Hall Sender). If the tach drops like a rock when the engine sputters, the signal from the Hall Sender is most likely shorting out or not being produced. If the elbow coming out of the distributor caan be wiggled than take of the cap, the rotor and the dust cover and look very closely at the wires going into that elbow - if they cab touch the distrobutor body the signal is not going to make it past that point...

dave


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