Where is the EST sensor? 89 Caprice TBI 305


New member
Nov 7, 2019
Hello folks,

So I recently did a distributor rebuild and I have it back on. No issues there... yea right! That was a fun job first time I did a distributor, it was a learning experience let me tell you. Now the issue I am having is that I have no clue where my EST (Electronic Spark Timing) is located? I want to do my timing and one of things I need to is disconnect that sucker, but I just can’t find the dang thing. Any help would greatly be appreciated.


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