Today I installed a 4 pin Gm ignition system on my 22r. As usual everything went poorly, and it didn’t work like it was supposed to. There will be a follow up soon where I will get this working right (hopefully).
Amazon link for module heatsink
GM Genuine Parts 10474610 Igniter Heat Sink www.amazon.com/dp/B0012P2EQU/...
Link to My GDrive folder with some of the tests you can do to verify these modules.
drive.google.com/drive/folder...