D585 Coils

[danlee58]

I am planning to use Delco D585 Coils in a coil-near-plug setup. I plan to build an interface box to control the coils.

Are the Igniter input signals simple 5 Volt Logic?
Do I need to have an open collector to pull down a 12 volt input?
Is the dwell period a Logic Low or a Logic High?
What is the source and sink current requirements for the D585 Igniter input?

[Matt Cramer]

This link should help:

http://www.megamanual.com/seq/coils.htm#ls1

[danlee58]

Matt,

Thanks that helps a lot.

The LS2 Schematic has a note that the LS2 Coil Connector is flipped relative to the LS1 Coil Connector.

I purchased a harness that is supposed to be for LS1, LS2, etc.

Do I need to modify that harness?