Joel, we had that problem on our '86.  We tried a variety of fixes like the
fuel filter etc.  Our mechanic finally installed a wiring shield ($60) in
the computer somewhere and it stopped the problem.  AT that time (couple of
years ago) there was much talk on the board about that same problem and
several other folks also had the shield installed.  Another thought.

Madeline
15 Years of Westie Adventures
'90 Syncro Westie