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Thread: Will a SBEC2 work with a SBEC harness?

  1. #1
    Supporting Member Turbo Mopar Contributor
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    Will a SBEC2 work with a SBEC harness?

    I have a 1991 harness on my workshop floor and wired up power and ground.
    I tested two SBEC and they appears to be fine with my scanner. Several SBEC2 don't appear to communicate
    Any suggestions?
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  2. #2
    Supporting Member Turbo Mopar Contributor zin's Avatar
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    Re: Will a SBEC2 work with a SBEC harness?

    IIRC, the inputs are the same, but in different places on the connector. So if you re-located the wires to the correct location, I don't see why it wouldn't work... Just need the pin-outs for each to know where they go... IIRC :-)

    Mike
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government - lest it come to dominate our lives and interests." - Patrick Henry

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  3. #3
    Supporting Member Turbo Mopar Contributor
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    Re: Will a SBEC2 work with a SBEC harness?

    I checked several websites such as Russ' and it seem the SBEC and SBEC2 have the same pin location, for example
    http://hhscott.com/93tmv/SBEC_Conn.htm Does anyone have the SBEC2 pin connection table from the FSM? I only have 87,88 and 91

    I am working on a system I can check projects such as MPSciLink.
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  4. #4
    Mitsu booster
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    Re: Will a SBEC2 work with a SBEC harness?

    I can get you the diagrams from Mitchell, not sure if it'll have a pinout like the jeep fsms do, but it'll have all the ecm wiring on one or two pages.

  5. #5
    Supporting Member Turbo Mopar Contributor
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    Re: Will a SBEC2 work with a SBEC harness?

    Quote Originally Posted by A_ Kelley View Post
    I can get you the diagrams from Mitchell, not sure if it'll have a pinout like the jeep fsms do, but it'll have all the ecm wiring on one or two pages.
    Thank you
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  6. #6
    Mitsu booster
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    Re: Will a SBEC2 work with a SBEC harness?

    What year make models, motors do you need? Then I'll look them up and dump them into a PDF onto my goopgle drive and pm you the link.

  7. #7
    Supporting Member Turbo Mopar Contributor
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    Re: Will a SBEC2 work with a SBEC harness?

    Quote Originally Posted by A_ Kelley View Post
    What year make models, motors do you need? Then I'll look them up and dump them into a PDF onto my goopgle drive and pm you the link.
    I think a 1992 P body should get me going, 2.5 Turbo and 3,0 should be enough. Thanks for the help.
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  8. #8
    Visit www.boostbutton.com... Turbo Mopar Contributor ShelGame's Avatar
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    Re: Will a SBEC2 work with a SBEC harness?

    The big difference is the SBECII has a separate relay for the fuel pump (not ganged with the ASD). It also has 2 'ASD' sense wires instead of 1 (the 2nd 1 is actually a fuel pump relay sense).

    That 2nd sense wire cavity is empty on the SBEC harness. It should be as simple as splicing in a 2nd ASD sense wire and you're good to go.

    From what I remember, the pinouts and wiring diagrams are not clear on this. But, I ohmed out my SBEC harness when I was trying to run an SBEC on it (opposite of what you're asking, but basically same idea).
    https://db.tt/SV7ONZpQ
    Rob Lloyd
    '89 Daytona C/S

    2.5 T1 Auto
    13.24 @ 100.5mph
    NHRA #3728 AF/S

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  9. #9
    Supporting Member Turbo Mopar Contributor
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    Re: Will a SBEC2 work with a SBEC harness?

    Thanks Rob
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

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