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Thread: eficonnection 24x LT1 cam/crank sensor wiring question NO spark

  1. #1
    Fuel Injected! babywag's Avatar
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    eficonnection 24x LT1 cam/crank sensor wiring question NO spark

    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?
    Last edited by babywag; 05-07-2022 at 06:26 PM.
    Tony

    '88 Jeep Grand Wagoneer (aka Babywag)
    '67 Jeep J3000
    '07 Dodge Magnum SRT8

  2. #2
    Fuel Injected!
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    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.

  3. #3
    Fuel Injected! babywag's Avatar
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    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.
    Tony

    '88 Jeep Grand Wagoneer (aka Babywag)
    '67 Jeep J3000
    '07 Dodge Magnum SRT8

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