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Thread: LC-1 on the bench

  1. #1
    RIP EagleMark's Avatar
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    LC-1 on the bench

    Should a heated O2 sensor got hot on the bench when hooked up to an LC-1? Mine does not? Wonder if it needs to be grounded?

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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  2. #2
    Super Moderator Six_Shooter's Avatar
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    Re: LC-1 on the bench

    It should get warm.

    Yes, the grounds need to be connected.
    The man who says something is impossible, is usually interrupted by the man doing it.

  3. #3
    RIP EagleMark's Avatar
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    Re: LC-1 on the bench

    I'll try grounding the O2. Eveything else is grounded...

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  4. #4
    Super Moderator Six_Shooter's Avatar
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    Re: LC-1 on the bench

    The O2 itself does not need to be grounded.
    The man who says something is impossible, is usually interrupted by the man doing it.

  5. #5
    RIP EagleMark's Avatar
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    Re: LC-1 on the bench

    Yup tried that. The entire LC-1 system is wired to a batterey but no heat in O2 sensor? Went back and double checked wiring as per instructions but no heat?

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  6. #6
    Super Moderator Six_Shooter's Avatar
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    Re: LC-1 on the bench

    Did you do the heater calibration?
    The man who says something is impossible, is usually interrupted by the man doing it.

  7. #7
    RIP EagleMark's Avatar
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    Re: LC-1 on the bench

    Quote Originally Posted by Six_Shooter
    Did you do the heater calibration?
    I don't think so! I did the free air calibration... guess I'll have to do some more reading...

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  8. #8
    RIP EagleMark's Avatar
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    Re: LC-1 on the bench

    Reading ALL the instructions does help! So I did the heater calibration properly and the O2 got very warm.

    So that problem is solved!

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

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