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babywag
05-07-2022, 05:55 PM
I am confused. Tried to fire engine yesterday and I am not getting spark.
Harness was from 96 LT1, but I added wiring for cam/crank/coils from an 02 truck.
Wiring checks out, checked every single one, end-end.
Injectors/coils were swapped for firing order change.
Bank assignments changed for firing order change.

I have it wired per GM diagrams on cam/crank sensors.

A google search seems to indicate eficonnection says pins A&C should be swapped on both cam/crank sesnors.
Hoping this is my issue? But why would it be different/required?

kur4o
05-07-2022, 07:24 PM
Do you get injector pulse? First check the wiring per the diagram is correct. Than a way to log rpm and dtc from pcm while cranking.
Sensors should be labelled too. A B C for example.

babywag
05-07-2022, 09:17 PM
Update...
eficonnection is correct for pinout.
Appears it is NOT typical 0411 pinout.
The sensors are indeed different.
Swapped pins on both connectors and it fired up immediately.