I thought it was the nock sensor too. Is that the only thing the "retards" timing?

Can't I disconnect it temporarily to check if it is giving bad signals?

PS the vibration are gone!

  ----- Original Message ----- 
  From: Kjmmensing@aol.com 
  To: McNock@easystreet.com ; vanagon@GERRY.VANAGON.COM 
  Sent: Friday, March 07, 2003 8:53 PM
  Subject: Re: sudden timing advance change/Tiico

  Hey McNock, 
  try re-torqueing the "Knock" sensor. No, seriously with some of the vibration's you TIICOnaut's have talked about it is possible that the knock sensor is "hearing"something and retarding the timing. Just a thought. 

  Jeff E.   Lilburn, Ga. 
  87'WESTY (with a small cabinet complex) Weekender 
  87'GL