EF-37 Circuit Test

[n2deep]

Thanks. As you probably suspected in the beginning, the TVS was set in a position preventing idle contact. I have eyeballed now enough to get continuity and will reconnect everything to set it more accurately at 1400 rpm.

I don't know why the FSM did not suggest checking that first as you did.

[240260280z]

I think it is in there somewhere in the print...could be in the EFI bible or in a graph.

Page EF-56 in the 77FSM says to adjust so that the idle contact opens after 7 degrees of throttle plate rotation.

I'm happy to help.... once you dig in a bit more you will be an expert. I remember doing what you are now doing

[240260280z]

I just dug deeper to find my source:

78 FSM says to set TVS to change at 4 degrees (idle breaks) and 34 degrees (WOT makes)

It also say in item 8 on page EF-41 to set the idle to 1400 rpm then rotate the TVS to just make/brake at that point.