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Thread: sbc using coil per cylinder efi, LS pcm and efilive

  1. #11
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    Nov 2009
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    Yes I got it running. The LS1 crank sensor and the Vortec sbc crank sensor are wired different internally. I had to swap the wires A and C on the harness plug.
    Good luck man! Its been running like a scalded dog for2 years!
    Doing my best to fix what ain't broke!!

  2. #12
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    Mar 2021
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    Quote Originally Posted by Scatfish View Post
    Yes I got it running. The LS1 crank sensor and the Vortec sbc crank sensor are wired different internally. I had to swap the wires A and C on the harness plug.
    Good luck man! Its been running like a scalded dog for2 years!
    Thanks! I turned the key today and it fired right up! Like in half a crank, although rough running. It is a RamJet 350, replaced the MEFI 4 boat computer with the LS1B. Threw a bunch of codes, main one being the P1336 crank relearn. I am using the V3 with V8 Scan and Tune. Cant find the relearn procedure in V8, only for V7.5. Any ideas?

  3. #13
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by Scatfish View Post
    Yes I got it running. The LS1 crank sensor and the Vortec sbc crank sensor are wired different internally. I had to swap the wires A and C on the harness plug.
    Good luck man! Its been running like a scalded dog for2 years!
    On the CMP cam sensor plug...?

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